CVE-2021-41357
Win32k Elevation of Privilege Vulnerability
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- Fix
- Fixed in 10.0.19043.1288, 10.0.20348.288, 10.0.19041.1288, 10.0.19042.1288, 10.0.22000.258
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Microsoft Windows systems that include the Win32k kernel-mode driver are affected by this vulnerability. An attacker who can already run code on a vulnerable system could exploit it to gain higher, system-level privileges.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Win32k Elevation of Privilege Vulnerability
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Microsoft Windows 10 Version 21H1
From 10.0.0 · fixed in 10.0.19043.1288
- Microsoft Windows Server 2022
From 10.0.0 · fixed in 10.0.20348.288
- Microsoft Windows 10 Version 2004
From 10.0.0 · fixed in 10.0.19041.1288
- Microsoft Windows Server version 2004
From 10.0.0 · fixed in 10.0.19041.1288
- Microsoft Windows 10 Version 20H2
From 10.0.0 · fixed in 10.0.19042.1288
- Microsoft Windows Server version 20H2
From 10.0.0 · fixed in 10.0.19042.1288
- Microsoft Windows 11 version 21H2
From 10.0.0 · fixed in 10.0.22000.258