CVE & CISA-KEV Catalog

CVE-2026-20872

HIGHEPSS 97th pctl
6.5
CVSS v3
NVD

Description

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

CWE-73External Control of File Name or Path

How to fix

Remediation Available
Windows 10 Version 1607Windows
Install:KB5073722Microsoft
Windows 10 Version 1809Windows
Install:KB5073723Microsoft
Windows 10 Version 21H2Windows
Install:KB5073724Microsoft
Windows 10 Version 22H2Windows
Install:KB5073724Microsoft
Windows 11 Version 23H2Windows
Install:KB5073455Microsoft
Windows 11 Version 24H2Windows
Install:KB5074109Microsoft
Windows 11 Version 25H2Windows
Install:KB5074109Microsoft
Windows Server 2008Windows
Install:KB5073700Microsoft
Install:KB5073697Microsoft
Windows Server 2008 R2Windows
Install:KB5073699Microsoft
Install:KB5073695Microsoft
Windows Server 2012Windows
Install:KB5073698Microsoft
Windows Server 2012 (Server Core installation)Windows
Install:KB5073698Microsoft
Windows Server 2012 R2Windows
Install:KB5073696Microsoft
Windows Server 2012 R2 (Server Core installation)Windows
Install:KB5073696Microsoft
Windows Server 2016Windows
Install:KB5073722Microsoft
Windows Server 2016 (Server Core installation)Windows
Install:KB5073722Microsoft
Windows Server 2019Windows
Install:KB5073723Microsoft
Windows Server 2019 (Server Core installation)Windows
Install:KB5073723Microsoft
Windows Server 2022Windows
Install:KB5073457Microsoft
Windows Server 2022 (Server Core installation)Windows
Install:KB5073457Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)Windows
Install:KB5073450Microsoft
Windows Server 2025Windows
Install:KB5073379Microsoft
Windows Server 2025 (Server Core installation)Windows
Install:KB5073379Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

19.11%probability of exploitation in 30 days
97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Vendor Advisory1
Other references2

Related Vulnerabilities

Other CWE-73 (External Control of File Name or Path) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-39952Critical9.8100%-Fix
CVE-2024-8517Critical9.895%-Fix
CVE-2023-4634Critical9.883%-Fix
CVE-2018-17246Critical9.882%-Fix
CVE-2025-33053High8.882%KEVFix
CVE-2024-43451Medium6.582%KEVFix
Embed a live status badge for CVE-2026-20872
CVE-2026-20872 severity badge

Markdown

[![CVE-2026-20872](https://tridentstack.com/cve/badge/CVE-2026-20872.svg)](https://tridentstack.com/cve/CVE-2026-20872)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-20872"><img src="https://tridentstack.com/cve/badge/CVE-2026-20872.svg" alt="CVE-2026-20872"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it worksStart freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-27.