Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.

cve CVE-2026-18772 1 source, 1 claim · Watch

NVD writes:
Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion. the claim

Severity: MEDIUM NVD
CVSS: 6.5 NVD
Vendor: Samsung Open Source NVD
Product: rlottie NVD
CWE: CWE-1325 NVD

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-08-04

first spoke of it: Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.

NVD

What it is to other things

affects	samsung/rlottie NVD
made_by	samsung NVD

In words only, so not counted until a person confirms one:

made_by	`samsung_open_source` NVD says “Samsung Open Source”
affects	`samsung_open_source/rlottie` NVD says “Samsung Open Source · rlottie”

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

6.5

receipt

Source: NVD
Its words: 6.5
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-1325

receipt

Source: NVD
Its words: CWE-1325
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CWE-1325
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

rlottie

receipt

Source: NVD
Its words: rlottie
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	rlottie
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

MEDIUM

From 4.0 to 6.9.

receipt

Source: NVD
Its words: MEDIUM
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	MEDIUM
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

medium

Status

status

NVD

Analyzed

receipt

Source: NVD
Its words: Analyzed
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

partial

The attacker gains limited control, or limited information.

receipt

Source: NVD
Its words: partial
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	partial
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

Samsung Open Source

receipt

Source: NVD
Its words: Samsung Open Source
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Samsung Open Source
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "rlottie",
            "vendor": "Samsung Open Source",
            "versions": [
              {
                "status": "unaffected",
                "version": "f487eff2f8086b84ae1c7faa0418abec909e874b"
              }
            ]
          }
        ],
        "source": "PSIRT@samsung.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*",
                "matchCriteriaId": "839F9D6A-5E2B-4FDF-9F6F-CB9D3ED281F0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion."
      }
    ],
    "id": "CVE-2026-18772",
    "lastModified": "2026-09-23T15:59:32.730",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6,
          "source": "PSIRT@samsung.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18772",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-04T13:16:08.111242Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-04T10:19:32.923",
    "references": [
      {
        "source": "PSIRT@samsung.com",
        "tags": [
          "Patch"
        ],
        "url": "https://github.com/Samsung/rlottie/pull/596"
      }
    ],
    "sourceIdentifier": "PSIRT@samsung.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1325"
          }
        ],
        "source": "PSIRT@samsung.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.

zetlyn/cve-nvd · 2026-08-04

automatable no cvss 6.5 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H cwe CWE-1325 exploitation none product rlottie severity MEDIUM status Analyzed technical_impact partial vendor Samsung Open Source

source