CVE-2026-20925: NTLM Hash Disclosure Spoofing Vulnerability
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
Other sources
NTLM Hash Disclosure Spoofing Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.22968Patch KB5073696 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.1.7601.28117Patch KB5073699 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.0.6003.23717Patch KB5073700 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.8783Patch KB5073722 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.25868Patch KB5073698 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.32230Patch KB5073379 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.25398.2092Patch KB5073450 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.7623Patch KB5074109 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.6491Patch KB5073455 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.7623Patch KB5074109 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.6809Patch KB5073724 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.6809Patch KB5073724 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.8276Patch KB5073723 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.4648Patch KB5073457
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20925?
CVE-2026-20925 is rated as a critical severity vulnerability that can expose NTLM hash information.
How do I fix CVE-2026-20925?
To fix CVE-2026-20925, apply the latest security updates or patches recommended by Microsoft for the affected Windows versions.
What systems are affected by CVE-2026-20925?
CVE-2026-20925 affects multiple versions of Microsoft Windows Server and Windows 10 and 11 across different installations.
What type of attack does CVE-2026-20925 enable?
CVE-2026-20925 allows an unauthorized attacker to perform NTLM hash disclosure spoofing attacks over a network.
Is there a workaround for CVE-2026-20925?
No official workaround is provided for CVE-2026-20925; users are advised to apply the necessary updates as soon as possible.