CVE-2026-35416
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
| Vendor | microsoft |
| Product | windows 10 version 1607 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | May 12, 2026 |
| Last Updated | May 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows 10 Version 1607
10.0.14393.0 < 10.0.14393.9140
Microsoft / Windows 10 Version 1809
10.0.17763.0 < 10.0.17763.8755
Microsoft / Windows 10 Version 21H2
10.0.19044.0 < 10.0.19044.7291
Microsoft / Windows 10 Version 22H2
10.0.19045.0 < 10.0.19045.7291
Microsoft / Windows 11 version 22H3
10.0.22631.0 < 10.0.22631.7079
Microsoft / Windows 11 Version 23H2
10.0.22631.0 < 10.0.22631.7079
Microsoft / Windows 11 Version 24H2
10.0.26100.0 < 10.0.26100.8457
Microsoft / Windows 11 Version 25H2
10.0.26200.0 < 10.0.26200.8457
Microsoft / Windows 11 version 26H1
10.0.28000.0 < 10.0.28000.2113
Microsoft / Windows Server 2012
6.2.9200.0 < 6.2.9200.26079
Microsoft / Windows Server 2012 (Server Core installation)
6.2.9200.0 < 6.2.9200.26079
Microsoft / Windows Server 2012 R2
6.3.9600.0 < 6.3.9600.23181
Microsoft / Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 < 6.3.9600.23181
Microsoft / Windows Server 2016
10.0.14393.0 < 10.0.14393.9140
Microsoft / Windows Server 2016 (Server Core installation)
10.0.14393.0 < 10.0.14393.9140
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.8755
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.8755
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.5139
Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.0 < 10.0.25398.2330
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.32860
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.32860