Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (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)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Microsoft Windows | — | 2026-05 Cumulative Update for Microsoft Windows 10, version 1809 (KB5087538)2026-05 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB5087538)2026-05 Cumulative Update for Microsoft Windows 11, version 26H1 (KB5089548)2026-05 Cumulative Update for Microsoft Windows Server 2012 R2 (KB5087471)2026-05 Cumulative Update for Microsoft Windows Server 2012 (KB5087470)2026-05 Cumulative Update for Microsoft Windows 10, version 21H2 (KB5087544)2026-05 Cumulative Update for Microsoft Windows Server 2022, version 23H2 (KB5087541)2026-05 Cumulative Update for Microsoft Windows 10, version 1607 (KB5087537)2026-05 Cumulative Update for Microsoft Windows 10, version 22H2 (KB5087544)2026-06 Cumulative Update for Microsoft Windows 11, version 23H2 (KB5093998)2026-05 Cumulative Update for Microsoft Windows 11, version 23H2 (KB5087420)2026-06 Cumulative Update for Microsoft Windows 10, version 22H2 (KB5094127)2026-05 Cumulative Update for Microsoft Windows 11, version 25H2 (KB5089549)2026-05 Cumulative Update for Microsoft Windows 11, version 24H2 (KB5089549)2026-05 Cumulative Update for Microsoft Windows Server 2022, version 22H2 (KB5087545)2026-05 Cumulative Update for Microsoft Windows Server 2022, version 21H2 (KB5087545)2026-05 Cumulative Update for Microsoft Windows Server 2025, version 24H2 (KB5087539)2026-05 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB5087537) | May 12, 2026 | May 12, 2026 |
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