CVE-2024-26226: Windows Distributed File System (DFS) Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-09 · updated 2026-06-17
Weakness: CWE-125

Description

Windows Distributed File System (DFS) Information Disclosure Vulnerability

Affected products

Microsoft Windows Server 2008: r2-sp1
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.6897 — fixed in 10.0.14393.6897
Microsoft Windows Server 2019: before 10.0.17763.5696 — fixed in 10.0.17763.5696
Microsoft Windows Server 2022: before 10.0.20348.2402 — fixed in 10.0.20348.2402
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.830 — fixed in 10.0.25398.830
Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.7601.0 before 6.1.7601.27067 — fixed in 6.1.7601.27067
Microsoft Windows Server 2008 Service Pack 2: from 6.0.6003.0 before 6.0.6003.22618 — fixed in 6.0.6003.22618
Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.24821 — fixed in 6.2.9200.24821
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.21924 — fixed in 6.3.9600.21924
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.6897 — fixed in 10.0.14393.6897
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.5696 — fixed in 10.0.17763.5696
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.2402 — fixed in 10.0.20348.2402
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.830 — fixed in 10.0.25398.830

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2016 10.0.14393.6897; Microsoft Windows Server 2019 10.0.17763.5696; Microsoft Windows Server 2022 10.0.20348.2402; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.830; Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.27067; Microsoft Windows Server 2008 Service Pack 2 6.0.6003.22618; Microsoft Windows Server 2012 6.2.9200.24821; Microsoft Windows Server 2012 R2 6.3.9600.21924; Microsoft Windows Server 2016 10.0.14393.6897; Microsoft Windows Server 2019 10.0.17763.5696; Microsoft Windows Server 2022 10.0.20348.2402; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.830. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2024-26226 or the next vulnerability affects your stack