Is CVE-2026-50508 being actively exploited?

CVE-2026-50508 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-50508?

CVE-2026-50508 has a CVSS 3.1 base score of 6.5 (MEDIUM).

CVE-2026-50508

MEDIUM · CVSS 6.5EPSS 0.9%EU EUVD

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

Key facts

CVSS score: 6.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 0.9% (60th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-35529)
Published: June 9, 2026
NVD last modified: July 23, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-35529 in the EU Vulnerability Database. Last updated in EUVD on September 24, 2026.

View on the EU Vulnerability Database

Affected products

microsoft / windows 10 1607
microsoft / windows 10 1607
microsoft / windows 11 22h2
microsoft / windows 11 22h2
microsoft / windows server 2004
microsoft / windows server 2012
microsoft / windows server 2012
microsoft / windows server 2016
microsoft / windows server 2022

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Microsoft Windows 10 version 2004 (May 2020 Update), Microsoft Windows Server version 2004 (May 2020 Update) and others - Microsoft Corporation - Common Criteria 2020-50-INF-3671 - active

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50508(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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