CVE-2021-31979CISA KEVEPSS p91.3%

CVE-2021-31979Microsoft Windows Kernel Privilege Escalation Vulnerability

Microsoft / Windows

Description

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

Scoring

CVSS 7.8 ()
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS4.54% probability of exploitation · percentile 91.3% · 2026-10-06T12:00:23Z
Last modified2026-08-10

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Kernel Privilege Escalation Vulnerabilitykev-cve-2021-319790%live

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.