What is CVE-2025-22074?

CVE-2025-22074 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6.84 onward and patched in 6.6.87, 6.12.23, 6.13.11 and others. CVE-2025-22074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-22074?

CVE-2025-22074 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-22074?

Yes, CVE-2025-22074 has been patched. Fixed versions include 6.6.87, 6.12.23, 6.13.11 and others. If you are running Linux kernel 6.6.84 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-22074 actively exploited?

CVE-2025-22074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-22074

Medium

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix r_count dec/increment mismatch r_count is only increased when there is an oplock break wait, so r_count inc/decrement are not paired. This can cause r_count to become negative, which can lead to a problem where the ksmbd thread does not terminate.

Package Linux Kernel

Published 2025-04-16

Last modified 2025-11-14

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.6.84, 6.12.20, 6.13.8, 6.14 and later are affected. Fixed in 6.6.87, 6.12.23, 6.13.11, 6.14.2, 6.15 and their respective stable series.

Affected from

≥ 6.6.84 ≥ 6.12.20 ≥ 6.13.8 ≥ 6.14

Fixed in

✓ 6.6.87 6.6.x ✓ 6.12.23 6.12.x ✓ 6.13.11 6.13.x ✓ 6.14.2 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-22074 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/20378cf48359f39dee0ef9b61470ebe77bd49c0d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/457db486203c90e10c3efc87fd45cc7000b1cd36
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4790bcb269e5d6d88200a67c54ae6d627332a3be
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2025-22074

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-04-16

Modified 2025-11-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-22074?

CVE-2025-22074 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6.84 onward and has been patched in 6.6.87, 6.12.23, 6.13.11 and others. CVE-2025-22074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-22074?

CVE-2025-22074 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-22074?

Yes — CVE-2025-22074 has been patched. Fixed versions include 6.6.87, 6.12.23, 6.13.11 and others. If you are running Linux kernel 6.6.84 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-22074 actively exploited?

No — CVE-2025-22074 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.