Summary
Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
- Vendor
- Microsoft
- Product
- Windows Ancillary Function Driver for WinSock
- Added to KEV
- Aug 11, 2026
- Remediation due
- Aug 25, 2026 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-416
- EPSS
- 8.6% as of Nov 12
In the news
- No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
- none recorded
References