CVE-2025-59280

Name: CVE-2025-59280
Creator: NVD / NIST
Published: 2025-10-14T17:16:10.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.1/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2025-59280 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.

Metrics

CVSS 3.1

3.1/10

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

EPSS Probability

0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions	Update
Microsoft	Windows 10 1507	< 10.0.10240.21161	—
Microsoft	Windows 10 1607	< 10.0.14393.8519	—
Microsoft	Windows 10 1809	< 10.0.17763.7919	—
Microsoft	Windows 10 21h2	< 10.0.19044.6456	—
Microsoft	Windows 10 22h2	< 10.0.19045.6456	—
Microsoft	Windows 11 22h2	< 10.0.22621.6060	—
Microsoft	Windows 11 23h2	<= 10.0.22631.6060	—
Microsoft	Windows 11 24h2	< 10.0.26100.6899	—
Microsoft	Windows Server 2008	All versions	Sp2
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	—
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Server 2016	<= 10.0.14393.8519	—
Microsoft	Windows Server 2019	< 10.0.17763.7919	—
Microsoft	Windows Server 2022	< 10.0.20348.4294	—
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1913	—
Microsoft	Windows Server 2025	<= 10.0.26100.6899	—

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59280Vendor Advisory

Timeline

Published: Oct 14, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-59280?

Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.

How severe is CVE-2025-59280?

CVE-2025-59280 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2025-59280?

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-2025-59280?

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

Scan your code now

Source: NVD / NIST