Is CVE-2025-48802 in the CISA KEV catalog?

No. CVE-2025-48802 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-48802?

CVE-2025-48802 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-48802?

CVE-2025-48802 has an EPSS score of 0.74% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-48802?

Install KB5062552 for Windows 11 Version 22H2. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2025-48802

MEDIUM

6.5

CVSS v3

NVD

Description

Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

Windows 11 Version 22H2Windows

Install:KB5062552Microsoft

Windows 11 Version 23H2Windows

Install:KB5062552Microsoft

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

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

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.74%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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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 2025-07-15.