A AegiFlow
UNKNOWNKNOWN EXPLOITED

CVE-2025-21418

Microsoft Windows Ancillary Function Driver for WinSock Heap-Based Buffer Overflow Vulnerability

Published
2025-02-11
Modified
2026-07-31
Sources
cisa-kev

Summary

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.

References

Includes data from the CISA Known Exploited Vulnerabilities catalog.

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