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Vulnerabilities

Vulnerability · CVE-2025-22041

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_de

Published Apr 16, 2025 · catalog updated Aug 5, 2026 · Linux Linux

Check this week

CVE-2025-22041 is not in CISA KEV. FIRST estimates a 68.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
68.00%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf <33cc29e221df7a3085ae413e8c26c4e81a151153

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed through the global session table can be accessed again through ->sessions of connection.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf <33cc29e221df7a3085ae413e8c26c4e81a1511530626e6641f6b467447c81dd7678a69c66f7746cf <33cc29e221df7a3085ae413e8c26c4e81a151153

How to fix CVE-2025-22041

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-22041 is not in CISA KEV. FIRST estimates a 68.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf <33cc29e221df7a3085ae413e8c26c4e81a151153 0626e6641f6b467447c81dd7678a69c66f7746cf <33cc29e221df7a3085ae413e8c26c4e81a151153. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 68.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 16, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed through the global session table can be accessed again through ->sessions of connection.

  2. Aug 5, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed through the global session table can be accessed again through ->sessions of connection.

Sources

  • CVE.orgVulnerability recordCVE-2025-22041

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-11254

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. sess

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.