CVE-2026-20872

CWE-735 documents5 sources
Severity
6.5MEDIUM
EPSS
0.1%
top 75.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
32
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+29 more
Timeline
PublishedJan 13

Description

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages31 packages

▶NVDmicrosoft/windows< 10.0.14393.8783+5
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8783
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809

🔴Vulnerability Details

2
CVEList
NTLM Hash Disclosure Spoofing Vulnerability↗2026-01-13
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GHSA
GHSA-fpp4-775q-mqrm: External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network↗2026-01-13
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📋Vendor Advisories

1
Microsoft
NTLM Hash Disclosure Spoofing Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20872 Impact, Exploitability, and Mitigation Steps | Wiz↗
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