In Modem, there is a possible out of bounds read due to a missing permission check. This could...

zetlyn/cve-ghsa vulnerability ghsa GHSA-h6c4-mvxr-gf42 cve CVE-2026-20538 known 2026-10-05

https://github.com/advisories/GHSA-h6c4-mvxr-gf42

Properties

cweCWE-126
receipt
Source
GitHub advisories
Its words
CWE-126
Read by
field:cwes[].cwe_id
Said since
2026-10-05 06:17 UTC
Last answered
2026-10-05 12:22 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-20538",
  "cvss": {
    "score": null,
    "vector_string": null
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 0.0,
      "vector_string": null
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-126",
      "name": "Buffer Over-read"
    }
  ],
  "description": "In Modem, there is a possible out of bounds read due to a missing permission check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01774038; Issue ID: MSV-8914.",
  "ghsa_id": "GHSA-h6c4-mvxr-gf42",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-h6c4-mvxr-gf42",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-h6c4-mvxr-gf42"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-20538"
    }
  ],
  "nvd_published_at": "2026-10-05T02:16:52Z",
  "published_at": "2026-10-05T03:30:26Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-20538",
    "https://www.mediatek.com/product-security-bulletin/October-2026",
    "https://github.com/advisories/GHSA-h6c4-mvxr-gf42"
  ],
  "repository_advisory_url": null,
  "severity": "unknown",
  "source_code_location": "",
  "summary": "In Modem, there is a possible out of bounds read due to a missing permission check. This could...",
  "type": "unreviewed",
  "updated_at": "2026-10-05T03:30:33Z",
  "url": "https://api.github.com/advisories/GHSA-h6c4-mvxr-gf42",
  "vulnerabilities": [],
  "withdrawn_at": null
}
severityunknown
receipt
Source
GitHub advisories
Its words
unknown
Read by
field:severity
Said since
2026-10-05 06:17 UTC
Last answered
2026-10-05 12:22 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-20538",
  "cvss": {
    "score": null,
    "vector_string": null
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 0.0,
      "vector_string": null
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-126",
      "name": "Buffer Over-read"
    }
  ],
  "description": "In Modem, there is a possible out of bounds read due to a missing permission check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01774038; Issue ID: MSV-8914.",
  "ghsa_id": "GHSA-h6c4-mvxr-gf42",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-h6c4-mvxr-gf42",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-h6c4-mvxr-gf42"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-20538"
    }
  ],
  "nvd_published_at": "2026-10-05T02:16:52Z",
  "published_at": "2026-10-05T03:30:26Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-20538",
    "https://www.mediatek.com/product-security-bulletin/October-2026",
    "https://github.com/advisories/GHSA-h6c4-mvxr-gf42"
  ],
  "repository_advisory_url": null,
  "severity": "unknown",
  "source_code_location": "",
  "summary": "In Modem, there is a possible out of bounds read due to a missing permission check. This could...",
  "type": "unreviewed",
  "updated_at": "2026-10-05T03:30:33Z",
  "url": "https://api.github.com/advisories/GHSA-h6c4-mvxr-gf42",
  "vulnerabilities": [],
  "withdrawn_at": null
}

Text

In Modem, there is a possible out of bounds read due to a missing permission check. This could... In Modem, there is a possible out of bounds read due to a missing permission check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01774038; Issue ID: MSV-8914.