Windows NTLM Spoofing Vulnerability (Microsoft Windows 10 Version 1607)

CVE-2026-50508

MEDIUM 6.5

At a glance

Source: NVD
EPSS: EPSS 12.10 % · percentile 96 (2026-10-30)
State: PUBLISHED
Published: 2026-06-09 17:05 UTC
Updated: 2026-09-24 13:44 UTC
Assigner: microsoft
NVD status: Analyzed

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Description

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

Weaknesses (CWE)

CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50508

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.5	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	microsoft
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	NVD · secure@microsoft.com (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2026-35529
GCVE · GCVE-0-2026-50508

CERT-FR advisories

CERTFR-2026-AVI-0728 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* < 10.0.14393.9234
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* < 10.0.14393.9234
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:* < 10.0.22631.7219
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:* < 10.0.22631.7219
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:x64:* < 10.0.19045.7417
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* < 10.0.14393.9234
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* < 10.0.20348.5256

Affected products

Product	Versions
Microsoft · Windows 10 Version 1607	affected 10.0.14393.0 < 10.0.14393.9234
Microsoft · Windows 11 version 22H2	affected 10.0.22621.0 < 10.0.22631.7219
Microsoft · Windows Server 2012	affected 6.2.9200.0 < 6.2.9200.26132
Microsoft · Windows Server 2012 (Server Core installation)	affected 6.2.9200.0 < 6.2.9200.26132
Microsoft · Windows Server 2012 R2	affected 6.3.9600.0 < 6.3.9600.23228
Microsoft · Windows Server 2012 R2 (Server Core installation)	affected 6.3.9600.0 < 6.3.9600.23228
Microsoft · Windows Server 2016	affected 10.0.14393.0 < 10.0.14393.9234
Microsoft · Windows Server 2016 (Server Core installation)	affected 10.0.14393.0 < 10.0.14393.9234
Microsoft · Windows Server 2022	affected 10.0.20348.0 < 10.0.20348.5256
Microsoft · Windows Server version 2004	affected 10.0.0 < 10.0.19045.7417

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD