Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition

cve CVE-2026-20908 2 sources, 2 claims · Watch

Red Hat writes:
Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition the claim
Severity
MEDIUM NVD
moderate Red Hat
CVSS
5.3 NVD
5.3 Red Hat
Vendor
n/a NVD
Product
Intel(R) NPU Driver for Windows NVD
CWE
CWE-367 NVD
CWE-367 Red Hat

How far exploitation has got

  1. No public code known
  2. Proof of concept
  3. Proof of concept, verified
  4. A Metasploit module
  5. Exploited in the wild
  6. Used in ransomware campaigns

Timeline

2026-08-11first spoke of it: Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.NVD
2026-08-11first spoke of it: Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race conditionRed Hat

What it is to other things

affectsintel/neural_processing_unit_driver
NVD
made_byintel
NVD

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

made_byn_a
NVD says “n/a”
affectsn_a/intel_r_npu_driver_for_windows
NVD says “n/a · Intel(R) NPU Driver for Windows”
Every value, with what each source said and its receipt
PropertySourceSaidMeans here
Automatable
automatable
NVDno
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 UTCno
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "all versions"
              }
            ]
          }
        ],
        "source": "secure@intel.com"
      }
    ],
    "configurations": [
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              {
                "criteria": "cpe:2.3:a:intel:neural_processing_unit_driver:*:*:*:*:*:windows:*:*",
                "matchCriteriaId": "8662814C-9825-4E30-BCB8-BC3620F7F626",
                "versionEndExcluding": "32.0.100.4723",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
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    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
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      }
    ],
    "id": "CVE-2026-20908",
    "lastModified": "2026-09-28T16:56:42.337",
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  }
}
—
CVSS
cvss
NVD5.3
receipt
Source
NVD
Its words
5.3
Read by
field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-09-29 09:39 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": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
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                "version": "all versions"
              }
            ]
          }
        ],
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                "versionEndExcluding": "32.0.100.4723",
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      }
    ],
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    "lastModified": "2026-09-28T16:56:42.337",
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—
CVSS
cvss
Red Hat5.3
receipt
Source
Red Hat
Its words
5.3
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-20908",
  "CWE": "CWE-367",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2514153",
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  "cvss_score": null,
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  "package_state": null,
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  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-20908.json",
  "severity": "moderate"
}
—
Cvss4
cvss4
NVD5.8
receipt
Source
NVD
Its words
5.8
Read by
field:cve.metrics.cvssMetricV40[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV40[].cvssData.baseScore
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 UTC5.8
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
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                "versionEndExcluding": "32.0.100.4723",
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            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
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          "type": "Secondary"
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      }
    ]
  }
}
—
Cvss4 vector
cvss4_vector
NVDCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
receipt
Source
NVD
Its words
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Read by
field:cve.metrics.cvssMetricV40[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV40[].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 UTCCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "all versions"
              }
            ]
          }
        ],
        "source": "secure@intel.com"
      }
    ],
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    "cveTags": [],
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    ],
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    "lastModified": "2026-09-28T16:56:42.337",
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      "cvssMetricV31": [
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          "cvssData": {
            "attackComplexity": "HIGH",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
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          },
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      ],
      "cvssMetricV40": [
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          "cvssData": {
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            "Recovery": "NOT_DEFINED",
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            "attackVector": "LOCAL",
            "availabilityRequirement": "NOT_DEFINED",
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            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "source": "secure@intel.com",
          "type": "Secondary"
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      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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                "exploitation": "none"
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                "technicalImpact": "partial"
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    "published": "2026-08-11T17:17:54.727",
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        "source": "secure@intel.com",
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    "sourceIdentifier": "secure@intel.com",
    "vulnStatus": "Analyzed",
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        ],
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      },
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          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—
CVSS vector
cvss_vector
NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
receipt
Source
NVD
Its words
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/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 UTCCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "all versions"
              }
            ]
          }
        ],
        "source": "secure@intel.com"
      }
    ],
    "configurations": [
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                "versionEndExcluding": "32.0.100.4723",
                "vulnerable": true
              }
            ],
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          }
        ]
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    ],
    "cveTags": [],
    "descriptions": [
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        "lang": "en",
        "value": "Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts."
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    ],
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    "lastModified": "2026-09-28T16:56:42.337",
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      "cvssMetricV31": [
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          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
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          "impactScore": 4.2,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "source": "secure@intel.com",
          "type": "Secondary"
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      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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                "exploitation": "none"
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              },
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                "technicalImpact": "partial"
              }
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            "timestamp": "2026-08-12T15:30:24.815008Z",
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          }
        }
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    },
    "published": "2026-08-11T17:17:54.727",
    "references": [
      {
        "source": "secure@intel.com",
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      }
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  }
}
—
CVSS vector
cvss_vector
Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
receipt
Source
Red Hat
Its words
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Read by
field:cvss3_scoring_vector
Said since
2026-10-06 13:01 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
2026-10-06 13:01 UTCCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
2026-09-29 09:44 UTC—
What the source handed over
{
  "CVE": "CVE-2026-20908",
  "CWE": "CWE-367",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2514153",
  "bugzilla_description": "Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition",
  "cvss3_score": "5.3",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-11T16:27:20Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-20908.json",
  "severity": "moderate"
}
—
CWE
cwe
NVDCWE-367
receipt
Source
NVD
Its words
CWE-367
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 UTCCWE-367
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "all versions"
              }
            ]
          }
        ],
        "source": "secure@intel.com"
      }
    ],
    "configurations": [
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                "versionEndExcluding": "32.0.100.4723",
                "vulnerable": true
              }
            ],
            "negate": false,
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          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts."
      }
    ],
    "id": "CVE-2026-20908",
    "lastModified": "2026-09-28T16:56:42.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 4.2,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "secure@intel.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-20908",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-12T15:30:24.815008Z",
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    },
    "published": "2026-08-11T17:17:54.727",
    "references": [
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        "source": "secure@intel.com",
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      }
    ],
    "sourceIdentifier": "secure@intel.com",
    "vulnStatus": "Analyzed",
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          }
        ],
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        "type": "Primary"
      },
      {
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          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—
CWE
cwe
Red HatCWE-367
receipt
Source
Red Hat
Its words
CWE-367
Read by
field:CWE
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-20908",
  "CWE": "CWE-367",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2514153",
  "bugzilla_description": "Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition",
  "cvss3_score": "5.3",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-11T16:27:20Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-20908.json",
  "severity": "moderate"
}
—
Exploitation
exploitation
NVDnone
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 UTCnone
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "all versions"
              }
            ]
          }
        ],
        "source": "secure@intel.com"
      }
    ],
    "configurations": [
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          {
            "cpeMatch": [
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                "versionEndExcluding": "32.0.100.4723",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
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        "lang": "en",
        "value": "Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts."
      }
    ],
    "id": "CVE-2026-20908",
    "lastModified": "2026-09-28T16:56:42.337",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
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            "userInteraction": "NONE",
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            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
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            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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}
—
Product
product
NVDIntel(R) NPU Driver for Windows
receipt
Source
NVD
Its words
Intel(R) NPU Driver for Windows
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 UTCIntel(R) NPU Driver for Windows
2026-09-29 09:39 UTC—
What the source handed over
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      {
        "affectedData": [
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            "product": "Intel(R) NPU Driver for Windows",
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—
Severity
severity
NVDMEDIUM
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 UTCMEDIUM
2026-09-29 09:39 UTC—
What the source handed over
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}
medium
Severity
severity
Red Hatmoderate
A flaw that is harder to exploit, or whose impact is limited.
receipt
Source
Red Hat
Its words
moderate
Read by
field:severity
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
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  "CVE": "CVE-2026-20908",
  "CWE": "CWE-367",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2514153",
  "bugzilla_description": "Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition",
  "cvss3_score": "5.3",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-11T16:27:20Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-20908.json",
  "severity": "moderate"
}
medium
Status
status
NVDAnalyzed
receipt
Source
NVD
Its words
Analyzed
Read by
field:cve.vulnStatus
Said since
2026-09-29 09:39 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": "Intel(R) NPU Driver for Windows",
            "vendor": "n/a",
            "versions": [
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            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
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        "type": "Secondary"
      }
    ]
  }
}
—
Technical impact
technical_impact
NVDpartial
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 UTCpartial
2026-09-29 09:39 UTC—
What the source handed over
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}
—
Vendor
vendor
NVDn/a
receipt
Source
NVD
Its words
n/a
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 UTCn/a
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
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          {
            "defaultStatus": "unaffected",
            "product": "Intel(R) NPU Driver for Windows",
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    ]
  }
}
—
Every claim, by kind

vulnerability

Intel NPU Driver: Intel NPU Driver for Windows: Denial of Service via time-of-check time-of-use race condition
zetlyn/cve-redhat · 2026-08-11
cvss 5.3 cvss_vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H cwe CWE-367 severity moderate source
Time-of-check time-of-use race condition for the Intel(R) NPU Driver for Windows for all versions within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
zetlyn/cve-nvd · 2026-08-11
automatable no cvss 5.3 cvss4 5.8 cvss4_vector CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X cvss_vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H cwe CWE-367 exploitation none product Intel(R) NPU Driver for Windows severity MEDIUM status Analyzed technical_impact partial vendor n/a source