Microsoft Windows Ancillary Function Driver for WinSock Heap-Based Buffer Overflow Vulnerability
Microsoft Windows Ancillary Function Driver for WinSock contains a heap-based buffer overflow vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
- Vendor
- Microsoft
- Product
- Windows
- CVSS
- 7.8
- EPSS (exploit probability)
- 1.5%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
Microsoft Windows Ancillary Function Driver for WinSock contains a heap-based buffer overflow vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2025-02-11. Required action per CISA: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Due date: 2025-03-04.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.