Browse / CVEs / CVE-2025-21418
CVE-2025-21418· microsoft / windows· CWE-122
Microsoft Windows Ancillary Function Driver for WinSock Heap-Based Buffer Overflow Vulnerability
Exploited in the wild. Listed by CISA on 2025-02-11; known to be used by ransomware.
2.1%likelihood of exploitation, next 30 days
82%of all CVEs are less likely
Nonecheck to confirm it
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.
No ready check is stored for this CVE. Confirm it by hand from the references.
References
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