CVE-2025-47981
critical · 9.8Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
9.8
CVSS
32.6%
EPSS (exploit prob.)
98th
EPSS percentile
2025-07-08
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-122
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.21073 |
| microsoft | windows_10_1507 | < 10.0.10240.21073 |
| microsoft | windows_10_1607 | < 10.0.14393.8246 |
| microsoft | windows_10_1607 | < 10.0.14393.8246 |
| microsoft | windows_10_1809 | < 10.0.17763.7558 |
| microsoft | windows_10_1809 | < 10.0.17763.7558 |
| microsoft | windows_10_21h2 | < 10.0.19044.6093 |
| microsoft | windows_10_22h2 | < 10.0.19045.6093 |
| microsoft | windows_11_22h2 | < 10.0.22621.5624 |
| microsoft | windows_11_23h2 | < 10.0.22631.5624 |
| microsoft | windows_11_24h2 | < 10.0.26100.4652 |
| microsoft | windows_server_2008 | r2 |
| microsoft | windows_server_2012 | all versions |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | < 10.0.14393.8246 |
| microsoft | windows_server_2019 | < 10.0.17763.7558 |
| microsoft | windows_server_2022 | < 10.0.20348.3932 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.1732 |
| microsoft | windows_server_2025 | < 10.0.26100.4652 |
Check a specific version with /api/v1/cve/match.
References
- 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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2025-47981