CVEvulnerability

CVE-2022-21882

7.8 HIGH Known exploited Published 2022-01-11 Modified 2026-08-15 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Win32k Privilege Escalation Vulnerability — Microsoft Win32k

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.

Added to KEV: 2022-02-04
Remediation due: 2022-02-18
Ransomware use: Known
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2022-21882

Status: Analyzed
Published: 2022-01-11
Last modified: 2026-08-15
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses: CWE-787

Description

Win32k Elevation of Privilege Vulnerability

Affected configurations

• microsoft windows 10 1809 (< 10.0.17763.2452) • microsoft windows 10 1909 (< 10.0.18363.2037) • microsoft windows 10 20h2 (< 10.0.19042.1466) • microsoft windows 10 21h1 (< 10.0.19043.1466) • microsoft windows 10 21h2 (< 10.0.19044.1466) • microsoft windows 11 21h2 (< 10.0.22000.434) • microsoft windows server 2019 (< 10.0.17763.2452) • microsoft windows server 2022 (< 10.0.20348.469) • microsoft windows server 20h2 (< 10.0.19042.1466)

Weakness · CWE (1)

CWE-787 Out-of-bounds Write weakness

References