critical9.8
CVE-2025-47981
Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
Impact
Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1507 | before 10.0.10240.21073 |
| Microsoft | Windows 10 1607 | before 10.0.14393.8246 |
| Microsoft | Windows 10 1809 | before 10.0.17763.7558 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.6093 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.6093 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.5624 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.5624 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.4652 |
| Microsoft | Windows Server 2008 | Version r2 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.8246 |
| Microsoft | Windows Server 2019 | before 10.0.17763.7558 |
Weakness classification
References
- NVD record
- CVE.org record
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47981
- https://www.vicarius.io/vsociety/posts/cve-2025-47981-detection-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiation
- https://www.vicarius.io/vsociety/posts/cve-2025-47981-mitigation-script-heap-based-buffer-overflow-in-windows-spnego-extended-negotiation