Is CVE-2025-53798 in the CISA KEV catalog?

No. CVE-2025-53798 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-53798?

CVE-2025-53798 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-53798?

CVE-2025-53798 has an EPSS score of 1.08% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53798?

Install KB5065508 for Windows Server 2008. Fixes are available for 15 affected products.

CVE & CISA-KEV Catalog

CVE-2025-53798

MEDIUM

6.5

CVSS v3

NVD

Description

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

CWE-126Buffer Over-read

How to fix

Remediation Available

Windows Server 2008Windows

Install:KB5065508Microsoft

Install:KB5065511Microsoft

Windows Server 2008 R2Windows

Install:KB5065510Microsoft

Install:KB5065468Microsoft

Windows Server 2012Windows

Install:KB5065509Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5065509Microsoft

Windows Server 2012 R2Windows

Install:KB5065507Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5065507Microsoft

Windows Server 2016Windows

Install:KB5065427Microsoft

Windows Server 2016 (Server Core installation)Windows

Install:KB5065427Microsoft

Windows Server 2019Windows

Install:KB5065428Microsoft

Windows Server 2019 (Server Core installation)Windows

Install:KB5065428Microsoft

Windows Server 2022Windows

Install:KB5065306Microsoft

Install:KB5065432Microsoft

Windows Server 2022 (Server Core installation)Windows

Install:KB5065306Microsoft

Install:KB5065432Microsoft

Windows Server 2022, 23H2 Edition (Server Core installation)Windows

Install:KB5065425Microsoft

Windows Server 2025Windows

Install:KB5065426Microsoft

Install:KB5065474Microsoft

Windows Server 2025 (Server Core installation)Windows

Install:KB5065474Microsoft

Install:KB5065426Microsoft

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

Exploit Intelligence

1.08%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

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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 2025-10-02.