Windows 10 21h2
CVE-2026-20860
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
AnalysisAI
Windows 10 1607 is affected by access of resource using incompatible type (type confusion) (CVSS 7.8).
Technical ContextAI
This vulnerability (CWE-843: Access of Resource Using Incompatible Type (Type Confusion)) exists in the Windows Ancillary component. Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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External POC / Exploit Code
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