What is CVE-2025-71148?

CVE-2025-71148 is a Low severity Linux kernel vulnerability with a CVSS score of 3.3 out of 10, affecting Linux kernel versions from 6.4 onward and patched in 6.6.120, 6.12.64, 6.18.3 and others. CVE-2025-71148 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-71148?

CVE-2025-71148 has a CVSS score of 3.3 out of 10, rated Low severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Is there a patch available for CVE-2025-71148?

Yes, CVE-2025-71148 has been patched. Fixed versions include 6.6.120, 6.12.64, 6.18.3 and others. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-71148 actively exploited?

CVE-2025-71148 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-71148

Low

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshake_req_submit() replaces sk->sk_destruct but never restores it when submission fails before the request is hashed. handshake_sk_destruct() then returns early and the original destructor never runs, leaking the socket. Restore sk_destruct on the error path.

Package Linux Kernel

Published 2026-01-23

Last modified 2026-02-26

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

3.3

out of 10

Low

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Vector string

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

Affected versions

Linux kernel versions 6.4 and later are affected. Fixed in 6.6.120, 6.12.64, 6.18.3, 6.19 and their respective stable series.

Affected from

≥ 6.4

Fixed in

✓ 6.6.120 6.6.x ✓ 6.12.64 6.12.x ✓ 6.18.3 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2025-71148 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/6af2a01d65f89e73c1cbb9267f8880d83a88cee4
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7b82a1d6ae869533d8bdb0282a3a78faed8e63dd
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b225325be7b247c7268e65eea6090db1fc786d1f
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2025-71148

Severity Low

CVSS score 3.3 / 10

CVSS version 3.1

Published 2026-01-23

Modified 2026-02-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-71148?

CVE-2025-71148 is a Low severity Linux kernel vulnerability with a CVSS score of 3.3 out of 10 . It affects Linux kernel versions from 6.4 onward and has been patched in 6.6.120, 6.12.64, 6.18.3 and others. CVE-2025-71148 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-71148?

CVE-2025-71148 has a CVSS score of 3.3 out of 10, rated Low severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Is there a patch available for CVE-2025-71148?

Yes — CVE-2025-71148 has been patched. Fixed versions include 6.6.120, 6.12.64, 6.18.3 and others. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-71148 actively exploited?

No — CVE-2025-71148 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.