CVE-2025-59242

Summary

Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Affected Software

VendorProductVersion RangeStatus
MicrosoftWindows 10 Version 150710.0.10240.0 < 10.0.10240.21161affected
MicrosoftWindows 10 Version 160710.0.14393.0 < 10.0.14393.8519affected
MicrosoftWindows 10 Version 180910.0.17763.0 < 10.0.17763.7919affected
MicrosoftWindows 10 Version 21H210.0.19044.0 < 10.0.19044.6456affected
MicrosoftWindows 10 Version 22H210.0.19045.0 < 10.0.19045.6456affected
MicrosoftWindows 11 version 22H210.0.22621.0 < 10.0.22621.6060affected
MicrosoftWindows 11 version 22H310.0.22631.0 < 10.0.22631.6060affected
MicrosoftWindows 11 Version 23H210.0.22631.0 < 10.0.22631.6060affected
MicrosoftWindows 11 Version 24H210.0.26100.0 < 10.0.26100.6899affected
MicrosoftWindows 11 Version 25H210.0.26200.0 < 10.0.26200.6899affected
MicrosoftWindows Server 2008 R2 Service Pack 16.1.7601.0 < 6.1.7601.27974affected
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 < 6.1.7601.27974affected
MicrosoftWindows Server 2008 Service Pack 26.0.6003.0 < 6.0.6003.23571affected
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0 < 6.0.6003.23571affected
MicrosoftWindows Server 20126.2.9200.0 < 6.2.9200.25722affected
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 < 6.2.9200.25722affected
MicrosoftWindows Server 2012 R26.3.9600.0 < 6.3.9600.22824affected
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 < 6.3.9600.22824affected
MicrosoftWindows Server 201610.0.14393.0 < 10.0.14393.8519affected
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 < 10.0.14393.8519affected
MicrosoftWindows Server 201910.0.17763.0 < 10.0.17763.7919affected
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 < 10.0.17763.7919affected
MicrosoftWindows Server 202210.0.20348.0 < 10.0.20348.4294affected
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 < 10.0.25398.1913affected
MicrosoftWindows Server 202510.0.26100.0 < 10.0.26100.6899affected
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 < 10.0.26100.6899affected

Weaknesses

  • CWE-122: CWE-122: Heap-based Buffer Overflow
  • CWE-191: CWE-191: Integer Underflow (Wrap or Wraparound)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References