SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Elevation of Privilege Vulnerability
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-54895US | — | — | ||
Integer overflow or wraparound in Windows SPNEGO Extended Negotiation allows an authorized attacker to elevate privileges locally. | ||||
references
External citations — patches, advisories, analysis.
- CVE-2025-54895 SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Elevation of Privilege Vulnerability - CSAFself
- CVE-2025-54895 SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Elevation of Privilege Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
remediations (33)
- FixedWindows 10 Version 1607 for 32-bit Systems
10.0.14393.8422:Security Update:https://support.microsoft.com/help/5065427
https://support.microsoft.com/help/5065427 - FixedWindows 10 Version 1607 for x64-based Systems
10.0.14393.8422:Security Update:https://support.microsoft.com/help/5065427
https://support.microsoft.com/help/5065427 - FixedWindows 10 Version 1809 for 32-bit Systems
10.0.17763.7792:Security Update:https://support.microsoft.com/help/5065428
https://support.microsoft.com/help/5065428 - FixedWindows 10 Version 1809 for x64-based Systems
10.0.17763.7792:Security Update:https://support.microsoft.com/help/5065428
https://support.microsoft.com/help/5065428 - FixedWindows 10 Version 21H2 for 32-bit Systems
10.0.19044.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 Version 21H2 for ARM64-based Systems
10.0.19044.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 Version 21H2 for x64-based Systems
10.0.19044.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 Version 22H2 for 32-bit Systems
10.0.19045.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 Version 22H2 for ARM64-based Systems
10.0.19045.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 Version 22H2 for x64-based Systems
10.0.19045.6332:Security Update:https://support.microsoft.com/help/5065429
https://support.microsoft.com/help/5065429 - FixedWindows 10 for 32-bit Systems
10.0.10240.21128:Security Update:https://support.microsoft.com/help/5065430
https://support.microsoft.com/help/5065430 - FixedWindows 10 for x64-based Systems
10.0.10240.21128:Security Update:https://support.microsoft.com/help/5065430
https://support.microsoft.com/help/5065430 - FixedWindows 11 Version 22H2 for ARM64-based Systems
10.0.22621.5909:Security Update:https://support.microsoft.com/help/5065431
https://support.microsoft.com/help/5065431 - FixedWindows 11 Version 22H2 for x64-based Systems
10.0.22621.5909:Security Update:https://support.microsoft.com/help/5065431
https://support.microsoft.com/help/5065431 - FixedWindows 11 Version 23H2 for ARM64-based Systems
10.0.22631.5909:Security Update:https://support.microsoft.com/help/5065431
https://support.microsoft.com/help/5065431 - FixedWindows 11 Version 23H2 for x64-based Systems
10.0.22631.5909:Security Update:https://support.microsoft.com/help/5065431
https://support.microsoft.com/help/5065431 - FixedWindows 11 Version 24H2 for ARM64-based Systems
10.0.26100.6584:Security Update:https://support.microsoft.com/help/5065426
https://support.microsoft.com/help/5065426 - FixedWindows 11 Version 24H2 for x64-based Systems
10.0.26100.6584:Security Update:https://support.microsoft.com/help/5065426
https://support.microsoft.com/help/5065426 - FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1
6.1.7601.27929:Monthly Rollup:https://support.microsoft.com/help/5065468
https://support.microsoft.com/help/5065468 - FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
6.1.7601.27929:Monthly Rollup:https://support.microsoft.com/help/5065468
https://support.microsoft.com/help/5065468 - FixedWindows Server 2012
6.2.9200.25675:Monthly Rollup:https://support.microsoft.com/help/5065509
https://support.microsoft.com/help/5065509 - FixedWindows Server 2012 (Server Core installation)
6.2.9200.25675:Monthly Rollup:https://support.microsoft.com/help/5065509
https://support.microsoft.com/help/5065509 - FixedWindows Server 2012 R2
6.3.9600.22774:Monthly Rollup:https://support.microsoft.com/help/5065507
https://support.microsoft.com/help/5065507 - FixedWindows Server 2012 R2 (Server Core installation)
6.3.9600.22774:Monthly Rollup:https://support.microsoft.com/help/5065507
https://support.microsoft.com/help/5065507 - FixedWindows Server 2016
10.0.14393.8422:Security Update:https://support.microsoft.com/help/5065427
https://support.microsoft.com/help/5065427 - FixedWindows Server 2016 (Server Core installation)
10.0.14393.8422:Security Update:https://support.microsoft.com/help/5065427
https://support.microsoft.com/help/5065427 - FixedWindows Server 2019
10.0.17763.7792:Security Update:https://support.microsoft.com/help/5065428
https://support.microsoft.com/help/5065428 - FixedWindows Server 2019 (Server Core installation)
10.0.17763.7792:Security Update:https://support.microsoft.com/help/5065428
https://support.microsoft.com/help/5065428 - FixedWindows Server 2022
10.0.20348.4106:Security Hotpatch Update:https://support.microsoft.com/help/5065306
https://support.microsoft.com/help/5065306 - FixedWindows Server 2022 (Server Core installation)
10.0.20348.4106:Security Hotpatch Update:https://support.microsoft.com/help/5065306
https://support.microsoft.com/help/5065306 - FixedWindows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.1849:Security Update:https://support.microsoft.com/help/5065425
https://support.microsoft.com/help/5065425 - FixedWindows Server 2025
10.0.26100.6584:Security Update:https://support.microsoft.com/help/5065426
https://support.microsoft.com/help/5065426 - FixedWindows Server 2025 (Server Core installation)
10.0.26100.6584:Security Update:https://support.microsoft.com/help/5065426
https://support.microsoft.com/help/5065426
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