What is CVE-2026-23141?

CVE-2026-23141 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.11 onward and patched in 5.15.209, 6.1.167, 6.6.122 and others. CVE-2026-23141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23141?

CVE-2026-23141 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-2026-23141?

Yes, CVE-2026-23141 has been patched. Fixed versions include 5.15.209, 6.1.167, 6.6.122 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23141 actively exploited?

CVE-2026-23141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23141

Medium

In the Linux kernel, the following vulnerability has been resolved: btrfs: send: check for inline extents in range_is_hole_in_parent() Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items.

Package Linux Kernel

Published 2026-02-14

Last modified 2026-06-01

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 4.11 and later are affected. Fixed in 5.15.209, 6.1.167, 6.6.122, 6.12.67, 6.18.7, 6.19 and their respective stable series.

Affected from

≥ 4.11

Fixed in

✓ 5.15.209 5.15.x ✓ 6.1.167 6.1.x ✓ 6.6.122 6.6.x ✓ 6.12.67 6.12.x ✓ 6.18.7 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2026-23141 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/08b096c1372cd69627f4f559fb47c9fb67a52b39
Patch
Kernel patch commit
https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/901e581bfc44d181f7d9c3f11880dac3e89deb2e
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2026-23141

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-02-14

Modified 2026-06-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23141?

CVE-2026-23141 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.11 onward and has been patched in 5.15.209, 6.1.167, 6.6.122 and others. CVE-2026-23141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23141?

CVE-2026-23141 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-2026-23141?

Yes — CVE-2026-23141 has been patched. Fixed versions include 5.15.209, 6.1.167, 6.6.122 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23141 actively exploited?

No — CVE-2026-23141 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.