What is CVE-2025-71227?

CVE-2025-71227 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.8 onward and patched in 6.18.10 and 6.19. CVE-2025-71227 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-71227?

CVE-2025-71227 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-2025-71227?

Yes, CVE-2025-71227 has been patched. Fixed versions include 6.18.10 and 6.19. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-71227 actively exploited?

CVE-2025-71227 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-71227

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't WARN for connections on invalid channels It's not clear (to me) how exactly syzbot managed to hit this, but it seems conceivable that e.g. regulatory changed and has disabled a channel between scanning (channel is checked to be usable by cfg80211_get_ies_channel_number) and connecting on the channel later. With one scenario that isn't covered elsewhere described above, the warning isn't good, replace it with a (more informative) error message.

Package Linux Kernel

Published 2026-02-18

Last modified 2026-03-18

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 3.8 and later are affected. Fixed in 6.18.10, 6.19 and their respective stable series.

Affected from

≥ 3.8

Fixed in

✓ 6.18.10 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2025-71227 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/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce
Patch

Details

CVE ID CVE-2025-71227

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-02-18

Modified 2026-03-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-71227?

CVE-2025-71227 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.8 onward and has been patched in 6.18.10 and 6.19. CVE-2025-71227 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-71227?

CVE-2025-71227 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-2025-71227?

Yes — CVE-2025-71227 has been patched. Fixed versions include 6.18.10 and 6.19. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-71227 actively exploited?

No — CVE-2025-71227 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.