SECUFOCUSNOW
Home›CVE index›CVE-2025-37926
Review reviewHigh

CVE-2025-37926

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to the session to protect it.

CVSS
7.8
EPSS
0.47%
38.2% percentile
CISA KEV
Not listed
Published
2025.05.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.47%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to the session to protect it.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 0626e6641f6b467447c81dd7678a69c66f7746cf < a4348710a7267705b75692dc1a000920481d1d92, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 1067361a1cc6ad9cdf7acfc47f90012b72ad1502, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 8fb3b6c85b7e3127161623586b62abcc366caa20, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 6323fec65fe54b365961fed260dd579191e46121, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < a1f46c99d9ea411f9bf30025b912d881d36fc709, >= 5.15, >= 5.15 < 6.12.28, >= 6.13 < 6.14.6, 6.15
Fixed versions
6.12.28, 6.14.6

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416