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.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
For CVE-2025-21418, added to the catalogue on Feb 11, 2025 with a remediation deadline of Mar 04, 2025.
Available for technologies you monitor inside Seraph CTI.
Surfaced automatically when a tracked actor is linked to this CVE.
Shown when this vendor/product is relevant to your industry.
Campaign and indicator context, where Seraph analysts have published it.
Declare your technology stack inside Seraph CTI and get notified the moment a KEV entry matches it.
