CVE-2025-59510: Windows Routing and Remote Access Service (RRAS) Denial of Service Vulnerability

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-11 · updated 2026-06-17
Weakness: CWE-59

Description

Improper link resolution before file access ('link following') in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service locally.

Affected products

Microsoft Windows 10 1607: before 10.0.14393.8594 — fixed in 10.0.14393.8594
Microsoft Windows 10: before 10.0.17763.8027 — fixed in 10.0.17763.8027
Microsoft Windows 10: before 10.0.19044.6575 — fixed in 10.0.19044.6575
Microsoft Windows 10: before 10.0.19045.6575 — fixed in 10.0.19045.6575
Microsoft Windows 11: before 10.0.22631.6199 — fixed in 10.0.22631.6199
Microsoft Windows 11: before 10.0.26100.7092 — fixed in 10.0.26100.7092
Microsoft Windows 11 25H2: before 10.0.26200.7092 — fixed in 10.0.26200.7092
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.8594 — fixed in 10.0.14393.8594
Microsoft Windows Server 2019: before 10.0.17763.8027 — fixed in 10.0.17763.8027
Microsoft Windows Server 2022: before 10.0.20348.4346 — fixed in 10.0.20348.4346
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1965 — fixed in 10.0.25398.1965
Microsoft Windows Server 2025: before 10.0.26100.7092 — fixed in 10.0.26100.7092
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.8594 — fixed in 10.0.14393.8594
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.8027 — fixed in 10.0.17763.8027
Microsoft Windows 10: from 10.0.19044.0 before 10.0.19044.6575 — fixed in 10.0.19044.6575
Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.6575 — fixed in 10.0.19045.6575
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.6199 — fixed in 10.0.22631.6199
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.6199 — fixed in 10.0.22631.6199
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.7171 — fixed in 10.0.26100.7171
Microsoft Windows 11 25H2: from 10.0.26200.0 before 10.0.26200.7171 — fixed in 10.0.26200.7171
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.22869 — fixed in 6.3.9600.22869
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.8594 — fixed in 10.0.14393.8594
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.8027 — fixed in 10.0.17763.8027
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.4405 — fixed in 10.0.20348.4405
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1965 — fixed in 10.0.25398.1965
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.7171 — fixed in 10.0.26100.7171

How to fix

Upgrade to a fixed version: Microsoft Windows 10 1607 10.0.14393.8594; Microsoft Windows 10 10.0.17763.8027; Microsoft Windows 10 10.0.19044.6575; Microsoft Windows 10 10.0.19045.6575; Microsoft Windows 11 10.0.22631.6199; Microsoft Windows 11 10.0.26100.7092; Microsoft Windows 11 25H2 10.0.26200.7092; Microsoft Windows Server 2016 10.0.14393.8594; Microsoft Windows Server 2019 10.0.17763.8027; Microsoft Windows Server 2022 10.0.20348.4346; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1965; Microsoft Windows Server 2025 10.0.26100.7092. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59510

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