Vulnerability · Published Jun 9, 2026 · Assigned by microsoft
CVE-2026-50508Windows NTLM Spoofing Vulnerability
Medium 6.5
In plain English
A medium-severity information exposure in Windows 10 Version 1607 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 11.4% (higher than 96% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)11.4%top 4.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – before 10.0.14393.9234 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22631.7219 |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – before 6.2.9200.26132 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – before 6.2.9200.26132 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – before 6.3.9600.23228 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – before 6.3.9600.23228 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – before 10.0.14393.9234 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – before 10.0.14393.9234 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.5256 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19045.7417 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- Windows NTLM Spoofing Vulnerability vendor-advisory, patch