CVE-2025-37899

high

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.

References

https://www.databreachtoday.com/linux-zero-day-vulnerability-discovered-using-frontier-ai-a-28559

https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f

https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b

https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43

Details

Source: Mitre, NVD

Published: 2025-05-20

Updated: 2025-11-19

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00017