CVE-2025-38561

ksmbd: fix Preauh_HashValue race condition

CVE-2025-38561 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-38561, released August 19, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

9.8

medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0045

39th percentile

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Preauh_HashValue race condition If client send multiple session setup requests to ksmbd, Preauh_HashValue race condition could happen. There is no need to free sess->Preauh_HashValue at session setup phase. It can be freed together with session at connection termination phase.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
linux · Debian 12.15 (bookworm)	6.1.148-1	DEBIAN-CVE-2025-38561	Aug 19, 2025
linux · Debian 13.5 (trixie)	6.12.43-1	DEBIAN-CVE-2025-38561	Aug 19, 2025
linux · Debian 14	6.16.3-1	DEBIAN-CVE-2025-38561	Aug 19, 2025

Details

Published
August 19, 2025
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38561

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2025-38561">CVE-2025-38561 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.