Windows Ancillary Function Driver for WinSock 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 10.0.10240.20915, 10.0.14393.7785, 10.0.17763.6893, 10.0.19044.5487, 10.0.19045.5487, and 9 more
- 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
The Windows Ancillary Function Driver for WinSock, a core component of the Windows operating system that handles network socket communications, contains a flaw that could allow an attacker with local access to gain higher privileges on the affected system. Successful exploitation would give the attacker greater control over the computer than they should have, potentially allowing them to run code or make changes with administrative rights.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Timeline
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CVE published
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Microsoft Windows 10 Version 1507
From 10.0.10240.0 · fixed in 10.0.10240.20915
- Microsoft Windows 10 Version 1607
From 10.0.14393.0 · fixed in 10.0.14393.7785
- Microsoft Windows 10 Version 1809
From 10.0.17763.0 · fixed in 10.0.17763.6893
- Microsoft Windows 10 Version 21H2
From 10.0.19044.0 · fixed in 10.0.19044.5487
- Microsoft Windows 10 Version 22H2
From 10.0.19045.0 · fixed in 10.0.19045.5487
- Microsoft Windows 11 version 22H2
From 10.0.22621.0 · fixed in 10.0.22621.4890
- Microsoft Windows 11 version 22H3
From 10.0.22631.0 · fixed in 10.0.22631.4890
- Microsoft Windows 11 Version 23H2
From 10.0.22631.0 · fixed in 10.0.22631.4890
- Microsoft Windows 11 Version 24H2
From 10.0.26100.0 · fixed in 10.0.26100.3194
- Microsoft Windows Server 2008 R2 Service Pack 1
From 6.1.7601.0 · fixed in 6.1.7601.27566
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
From 6.1.7601.0 · fixed in 6.1.7601.27566
- Microsoft Windows Server 2008 Service Pack 2
From 6.0.6003.0 · fixed in 6.0.6003.23117
- Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
From 6.0.6003.0 · fixed in 6.0.6003.23117
- Microsoft Windows Server 2012
From 6.2.9200.0 · fixed in 6.2.9200.25317
- Microsoft Windows Server 2012 (Server Core installation)
From 6.2.9200.0 · fixed in 6.2.9200.25317
- Microsoft Windows Server 2012 R2
From 6.3.9600.0 · fixed in 6.3.9600.22417
- Microsoft Windows Server 2012 R2 (Server Core installation)
From 6.3.9600.0 · fixed in 6.3.9600.22417
- Microsoft Windows Server 2016
From 10.0.14393.0 · fixed in 10.0.14393.7785
- Microsoft Windows Server 2016 (Server Core installation)
From 10.0.14393.0 · fixed in 10.0.14393.7785
- Microsoft Windows Server 2019
From 10.0.17763.0 · fixed in 10.0.17763.6893
- Microsoft Windows Server 2019 (Server Core installation)
From 10.0.17763.0 · fixed in 10.0.17763.6893
- Microsoft Windows Server 2022
From 10.0.20348.0 · fixed in 10.0.20348.3207
- Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
From 10.0.25398.0 · fixed in 10.0.25398.1425
- Microsoft Windows Server 2025
From 10.0.26100.0 · fixed in 10.0.26100.3194
- Microsoft Windows Server 2025 (Server Core installation)
From 10.0.26100.0 · fixed in 10.0.26100.3194