CVE-2025-48802

Name: CVE-2025-48802
Creator: NVD / NIST
Published: 2025-07-08T17:15:43.13+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.74%

Last modified Jun 17, 2026

CVE-2025-48802 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.74%

50.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11 22h2	< 10.0.22621.5624
Microsoft	Windows 11 23h2	< 10.0.22631.5624
Microsoft	Windows Server 2022	< 10.0.20348.3932
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1732

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802Vendor Advisory

Timeline

Published: Jul 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-48802?

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

How severe is CVE-2025-48802?

CVE-2025-48802 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2025-48802?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-48802?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST