CVE-2025-32709
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Vexday Risk Score
71High priority
SSVC decision (CISA)
Act
Exploitation + impact → act immediately
CVSS 7.8EPSS 1.7%KEV simPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
13 May 2025Active exploitation (CISA KEV)
13 May 2025Published on NVD
04 Sep 2025Public PoC
Recommendation: Patch as soon as possible — active exploitation confirmed.
In short
A bug in Windows networking software allows someone with basic user access to crash the system or gain admin-level control by exploiting unsafe memory handling.
Technical detail
Null pointer dereference in the Windows Ancillary Function Driver for WinSock (CWE-416) enables local privilege escalation when an authenticated attacker triggers improper memory access, leading to kernel-mode code execution without requiring additional exploitation techniques.
Summary generated and translated by AI from the official description.
Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1507Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows 11 version 22H2Microsoft · Windows 11 version 22H3Microsoft · Windows 11 Version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows Server 2008 R2 Service Pack 1Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)public PoCs found — 1
githubgithub.com/AdnanSiyat/How-to-Patch-CVE-2025-32709★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Want to know if your infrastructure is exposed to this?
Talk to TrueHacking →