SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-47981US | — | Exploit | ||
Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network. | ||||
references
External citations — patches, advisories, analysis.
- CVE-2025-47981 SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability - CSAFself
- CVE-2025-47981 SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
remediations (33)
- FixedWindows 10 Version 1607 for 32-bit Systems
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560 - FixedWindows 10 Version 1607 for x64-based Systems
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560 - FixedWindows 10 Version 1809 for 32-bit Systems
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557 - FixedWindows 10 Version 1809 for x64-based Systems
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557 - FixedWindows 10 Version 21H2 for 32-bit Systems
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 Version 21H2 for ARM64-based Systems
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 Version 21H2 for x64-based Systems
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 Version 22H2 for 32-bit Systems
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 Version 22H2 for ARM64-based Systems
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 Version 22H2 for x64-based Systems
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554 - FixedWindows 10 for 32-bit Systems
10.0.10240.21073:Security Update:https://support.microsoft.com/help/5062561
https://support.microsoft.com/help/5062561 - FixedWindows 10 for x64-based Systems
10.0.10240.21073:Security Update:https://support.microsoft.com/help/5062561
https://support.microsoft.com/help/5062561 - FixedWindows 11 Version 22H2 for ARM64-based Systems
10.0.22621.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552 - FixedWindows 11 Version 22H2 for x64-based Systems
10.0.22621.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552 - FixedWindows 11 Version 23H2 for ARM64-based Systems
10.0.22631.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552 - FixedWindows 11 Version 23H2 for x64-based Systems
10.0.22631.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552 - FixedWindows 11 Version 24H2 for ARM64-based Systems
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553 - FixedWindows 11 Version 24H2 for x64-based Systems
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553 - FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1
6.1.7601.27820:Security Only:https://support.microsoft.com/help/5062619
https://support.microsoft.com/help/5062619 - FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
6.1.7601.27820:Security Only:https://support.microsoft.com/help/5062619
https://support.microsoft.com/help/5062619 - FixedWindows Server 2012
6.2.9200.25573:Monthly Rollup:https://support.microsoft.com/help/5062592
https://support.microsoft.com/help/5062592 - FixedWindows Server 2012 (Server Core installation)
6.2.9200.25573:Monthly Rollup:https://support.microsoft.com/help/5062592
https://support.microsoft.com/help/5062592 - FixedWindows Server 2012 R2
6.3.9600.22676:Monthly Rollup:https://support.microsoft.com/help/5062597
https://support.microsoft.com/help/5062597 - FixedWindows Server 2012 R2 (Server Core installation)
6.3.9600.22676:Monthly Rollup:https://support.microsoft.com/help/5062597
https://support.microsoft.com/help/5062597 - FixedWindows Server 2016
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560 - FixedWindows Server 2016 (Server Core installation)
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560 - FixedWindows Server 2019
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557 - FixedWindows Server 2019 (Server Core installation)
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557 - FixedWindows Server 2022
10.0.20348.3932:Security Update:https://support.microsoft.com/help/5062572
https://support.microsoft.com/help/5062572 - FixedWindows Server 2022 (Server Core installation)
10.0.20348.3932:Security Update:https://support.microsoft.com/help/5062572
https://support.microsoft.com/help/5062572 - FixedWindows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.1732:Security Update:https://support.microsoft.com/help/5062570
https://support.microsoft.com/help/5062570 - FixedWindows Server 2025
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553 - FixedWindows Server 2025 (Server Core installation)
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553
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