CVE-2021-40449CISA KEVEPSS p99.5%

CVE-2021-40449Microsoft Windows Win32k Privilege Escalation Vulnerability

Microsoft / Windows

Description

Unspecified vulnerability allows for an authenticated user to escalate privileges.

Scoring

EPSS74.13% probability of exploitation · percentile 99.5% · 2026-10-02T12:00:20Z

CISA KEV entry

Added to KEV: 2021-11-17

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Win32k Privilege Escalation Vulnerabilitykev-cve-2021-404490%live

Related by meaning· 2

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Microsoft Win32k Privilege Escalation Vulnerability
CVE
Microsoft Windows Kernel Privilege Escalation Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.