Is CVE-2025-47978 in the CISA KEV catalog?

No. CVE-2025-47978 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-47978?

CVE-2025-47978 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-47978?

CVE-2025-47978 has an EPSS score of 1.91% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-47978?

Install KB5062572 for Windows Server 2022. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2025-47978

MEDIUMEPSS 77th pctl

6.5

CVSS v3

NVD

Description

Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

Windows Server 2022Windows

Install:KB5062572Microsoft

Windows Server 2022 (Server Core installation)Windows

Install:KB5062572Microsoft

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

Install:KB5062570Microsoft

Windows Server 2025Windows

Install:KB5062553Microsoft

Windows Server 2025 (Server Core installation)Windows

Install:KB5062553Microsoft

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.91%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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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 2025-07-14.