CVE-2025-38562

ksmbd: fix null pointer dereference error in generate_encryptionkey

CVE-2025-38562 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-38562, released August 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.5

medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.1300

96th percentile

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
linux · Debian 12.15 (bookworm)	6.1.148-1	DEBIAN-CVE-2025-38562	Aug 19, 2025
linux · Debian 13.5 (trixie)	6.12.43-1	DEBIAN-CVE-2025-38562	Aug 19, 2025
linux · Debian 14	6.16.3-1	DEBIAN-CVE-2025-38562	Aug 19, 2025

Details

Published
August 19, 2025
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38562

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-2025-38562">CVE-2025-38562 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.