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CVE-2026-20810

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

CVSS 7.8 HIGHEPSS 0.5%CWE-590
Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Productos afectados
Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)

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Referencias
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20810