Review reviewHigh

CVE-2026-50508

Microsoft Windows 10 Version 1607, Windows 11 version 22H2, Windows Server 2012

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVSS
7.5
EPSS
8.68%
94.6% percentile
CISA KEV
Not listed
Published
2026.06.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability8.68%
Technical severityCVSS 7.5

Vulnerability overview

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Affected product and versions

Product
Microsoft Windows 10 Version 1607, Windows 11 version 22H2, Windows Server 2012
Affected versions
>= 10.0.14393.0 < 10.0.14393.9234, >= 10.0.22621.0 < 10.0.22631.7219, >= 6.2.9200.0 < 6.2.9200.26132, >= 6.3.9600.0 < 6.3.9600.23228, >= 10.0.20348.0 < 10.0.20348.5256, >= 10.0.0 < 10.0.19045.7417, < 10.0.14393.9234, < 10.0.22631.7219, < 10.0.19045.7417, r2, < 10.0.20348.5256
Fixed versions
10.0.14393.9234, 10.0.22631.7219, 10.0.19045.7417, 10.0.20348.5256

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Windows 10 Version 1607, Windows 11 version 22H2, Windows Server 2012 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
CWE-200