What is CVE-2026-23334?

CVE-2026-23334 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.5 onward and patched in 6.6.130, 6.12.77, 6.18.17 and others. CVE-2026-23334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23334?

CVE-2026-23334 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-2026-23334?

Yes, CVE-2026-23334 has been patched. Fixed versions include 6.6.130, 6.12.77, 6.18.17 and others. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23334 actively exploited?

CVE-2026-23334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23334

Medium

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: handle short interrupt urb messages properly If an interrupt urb is received that is not the correct length, properly detect it and don't attempt to treat the data as valid.

Package Linux Kernel

Published 2026-03-25

Last modified 2026-04-23

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 6.5 and later are affected. Fixed in 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0 and their respective stable series.

Affected from

≥ 6.5

Fixed in

✓ 6.6.130 6.6.x ✓ 6.12.77 6.12.x ✓ 6.18.17 6.18.x ✓ 6.19.7 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-23334 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/36ead57443146e6b730ce1f48ca3e9b17e19a3d2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/66615e6293388f75a56226d1216fd9cfb3d95e05
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7299b1b39a255f6092ce4ec0b65f66e9d6a357af
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2026-23334

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-03-25

Modified 2026-04-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23334?

CVE-2026-23334 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.5 onward and has been patched in 6.6.130, 6.12.77, 6.18.17 and others. CVE-2026-23334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23334?

CVE-2026-23334 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-2026-23334?

Yes — CVE-2026-23334 has been patched. Fixed versions include 6.6.130, 6.12.77, 6.18.17 and others. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23334 actively exploited?

No — CVE-2026-23334 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.