Description
Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < 10.0.10240.21128 | 10.0.10240.21128 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < 10.0.14393.8422 | 10.0.14393.8422 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.7792 | 10.0.17763.7792 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – < 10.0.19044.6332 | 10.0.19044.6332 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.6332 | 10.0.19045.6332 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.5909 | 10.0.22621.5909 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – < 10.0.22631.5909 | 10.0.22631.5909 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – < 10.0.22631.5909 | 10.0.22631.5909 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.6584 | 10.0.26100.6584 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 – < 6.1.7601.27929 | 6.1.7601.27929 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 – < 6.1.7601.27929 | 6.1.7601.27929 |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 – < 6.0.6003.23529 | 6.0.6003.23529 |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.6003.0 – < 6.0.6003.23529 | 6.0.6003.23529 |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < 6.2.9200.25675 | 6.2.9200.25675 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < 6.2.9200.25675 | 6.2.9200.25675 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < 6.3.9600.22774 | 6.3.9600.22774 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < 6.3.9600.22774 | 6.3.9600.22774 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < 10.0.14393.8422 | 10.0.14393.8422 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < 10.0.14393.8422 | 10.0.14393.8422 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.7792 | 10.0.17763.7792 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.7792 | 10.0.17763.7792 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.4171 | 10.0.20348.4171 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – < 10.0.25398.1849 | 10.0.25398.1849 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.6584 | 10.0.26100.6584 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.6584 | 10.0.26100.6584 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
Wh0am123/CVE-2025-54918-POC ★ 64 · Jan 12, 2026
POC for CVE-2025-54918 and a technical demonstration.
-
mrk336/From-Foothold-to-Domain-Admin-Weaponizing-CVE-2025-54918-in-Real-World-DevOps ★ 5 · Sep 17, 2025
Simulated exploitation and mitigation of CVE-2025-54918 (Windows NTLM flaw). Includes detection scripts, Ansible patching, and CI/CD hardening. Demonstrates privilege escalation from low-level access…
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- WID-SEC-2025-2005 Microsoft Windows und Windows Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2025
- NCSC-2025-0277 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Sep 9, 2025
- MSRC-CVE-2025-54918 Windows NTLM Elevation of Privilege Vulnerability Microsoft Security Response Center · Sep 9, 2025
References
- Windows NTLM Elevation of Privilege Vulnerability vendor-advisory patch