CVE-2023-32256CWE-421

Kernel: ksmbd race issue from smb2 close and logoff with multichannel

High · published August 1, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
43.0
In the wild
Unconfirmed
What it is

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00531 · 43.0th percentile
Weakness
CWE-421 · Race Condition During Access to Alternate Channel
Published
2025-08-01T17:37Z
EPSS history
Timeline
  • 01 AUG 17:37Z
    Kernel: ksmbd race issue from smb2 close and logoff with multichannel
    cvelistv5