What is CVE-2025-71129?

CVE-2025-71129 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.1 onward and patched in 6.6.120, 6.12.64, 6.18.4 and others. CVE-2025-71129 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-71129?

CVE-2025-71129 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-2025-71129?

Yes, CVE-2025-71129 has been patched. Fixed versions include 6.6.120, 6.12.64, 6.18.4 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-71129 actively exploited?

CVE-2025-71129 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-71129

Medium

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Sign extend kfunc call arguments The kfunc calls are native calls so they should follow LoongArch calling conventions. Sign extend its arguments properly to avoid kernel panic. This is done by adding a new emit_abi_ext() helper. The emit_abi_ext() helper performs extension in place meaning a value already store in the target register (Note: this is different from the existing sign_extend() helper and thus we can't reuse it).

Package Linux Kernel

Published 2026-01-14

Last modified 2026-03-25

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 6.1 and later are affected. Fixed in 6.6.120, 6.12.64, 6.18.4, 6.19 and their respective stable series.

Affected from

≥ 6.1

Fixed in

✓ 6.6.120 6.6.x ✓ 6.12.64 6.12.x ✓ 6.18.4 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2025-71129 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/0d666db731e95890e0eda7ea61bc925fd2be90c6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2025-71129

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-01-14

Modified 2026-03-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-71129?

CVE-2025-71129 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.1 onward and has been patched in 6.6.120, 6.12.64, 6.18.4 and others. CVE-2025-71129 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-71129?

CVE-2025-71129 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-2025-71129?

Yes — CVE-2025-71129 has been patched. Fixed versions include 6.6.120, 6.12.64, 6.18.4 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-71129 actively exploited?

No — CVE-2025-71129 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.