CVE-2025-54097: Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-09 · updated 2026-06-17
Weakness: CWE-125

Description

Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

Affected products

Microsoft Windows Server 2008: r2-sp1
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.8422 — fixed in 10.0.14393.8422
Microsoft Windows Server 2019: before 10.0.17763.7792 — fixed in 10.0.17763.7792
Microsoft Windows Server 2022: before 10.0.20348.4106 — fixed in 10.0.20348.4106
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1849 — fixed in 10.0.25398.1849
Microsoft Windows Server 2025: before 10.0.26100.6508 — fixed in 10.0.26100.6508
Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.7601.0 before 6.1.7601.27929 — fixed in 6.1.7601.27929
Microsoft Windows Server 2008 Service Pack 2: from 6.0.6003.0 before 6.0.6003.23529 — fixed in 6.0.6003.23529
Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.25675 — fixed in 6.2.9200.25675
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.22774 — fixed in 6.3.9600.22774
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.8422 — fixed in 10.0.14393.8422
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.7792 — fixed in 10.0.17763.7792
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.4171 — fixed in 10.0.20348.4171
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1849 — fixed in 10.0.25398.1849
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.6584 — fixed in 10.0.26100.6584

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2016 10.0.14393.8422; Microsoft Windows Server 2019 10.0.17763.7792; Microsoft Windows Server 2022 10.0.20348.4106; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1849; Microsoft Windows Server 2025 10.0.26100.6508; Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.27929; Microsoft Windows Server 2008 Service Pack 2 6.0.6003.23529; Microsoft Windows Server 2012 6.2.9200.25675; Microsoft Windows Server 2012 R2 6.3.9600.22774; Microsoft Windows Server 2016 10.0.14393.8422; Microsoft Windows Server 2019 10.0.17763.7792; Microsoft Windows Server 2022 10.0.20348.4171. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54097

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