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VULNERABILITIES

CVE-2021-31979 Details

Description

Windows Kernel Elevation of Privilege Vulnerability

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31979 CISA-ADPUS Government Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979 CVEPatchVendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31979 [email protected]PatchVendor Advisory

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability NameDate AddedDue DateRequired Action
Microsoft Windows Kernel Privilege Escalation VulnerabilityNov 3, 2021Nov 17, 2021Apply updates per vendor instructions.

Weakness Enumeration

CWE-IDCWE NameSource
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]
CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferCISA-ADP

Affected Products

ProductVersions

Change History

17 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-31979
NVD Published Date:
Jul 14, 2021
NVD Last Modified:
Aug 10, 2026
Source:
[email protected]
CVE-2021-31979 Details - Not Deferred