Findings

CVE-2021-31979

Microsoft Windows Kernel Privilege Escalation Vulnerability

Published Jul 14, 2021 · updated Aug 10, 2026 · microsoft windows 10 1507

Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 14, 2021 · Catalog

    Detected

    Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Nov 17, 2021 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Aug 10, 2026 · Catalog

    Updated

    Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

Required action

Apply updates per vendor instructions.

CISA due date Nov 17, 2021

Affected

  • cpe microsoft/windows 10 1507version unspecified
  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 1909version unspecified
  • cpe microsoft/windows 10 2004version unspecified
  • cpe microsoft/windows 10 20h2version unspecified
  • cpe microsoft/windows 10 21h1version unspecified
  • cpe microsoft/windows 7version unspecified
  • vendor Microsoft Windowsversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2021-31979

    Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-31979

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-31979

    30-day exploitation probability 4.5%

    first.org
  • NIST NVDVulnerability recordCVE-2021-31979

    Windows Kernel Elevation of Privilege Vulnerability

    nvd.nist.gov

References