What is CVE-2025-71273?

CVE-2025-71273 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 5.2 onward and patched in 6.12.75, 6.18.16, 6.19.6 and others. CVE-2025-71273 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-71273?

CVE-2025-71273 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-2025-71273?

Yes, CVE-2025-71273 has been patched. Fixed versions include 6.12.75, 6.18.16, 6.19.6 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-71273 actively exploited?

CVE-2025-71273 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2025-71273

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Use devm_kmemdup() in rtw_set_supported_band() Simplify the code by using device managed memory allocations. This also fixes a memory leak in rtw_register_hw(). The supported bands were not freed in the error path. Copied from commit 145df52a8671 ("wifi: rtw89: Convert rtw89_core_set_supported_band to use devm_*").

Package Linux Kernel

Published 2026-05-06

Last modified 2026-06-05

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

Weakness type

CWE-401

CVE-2025-71273 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.2 and later are affected. Fixed in 6.12.75, 6.18.16, 6.19.6, 7.0 and their respective stable series.

Affected from

≥ 5.2

Fixed in

✓ 6.12.75 6.12.x ✓ 6.18.16 6.18.x ✓ 6.19.6 6.19.x ✓ 7.0

References

4 total

Kernel Git
https://git.kernel.org/stable/c/1bd90e0a99fdc8dc5deb3c92bf865e4496b4b311

Patch
Kernel Git
https://git.kernel.org/stable/c/2ba12401cc1f2d970fa2e7d5b15abde3f5abd40d

Patch
Kernel Git
https://git.kernel.org/stable/c/9b5418070ee8468fac9e8bf641c83d46b85bff30

Patch
Kernel Git
https://git.kernel.org/stable/c/ad9b80ee310ed734482a2e5da874b67f88ac0ef8

Patch

Details

CVE ID CVE-2025-71273

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-06

Modified 2026-06-05

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-71273?

CVE-2025-71273 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 5.2 onward and has been patched in 6.12.75, 6.18.16, 6.19.6 and others. CVE-2025-71273 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-71273?

CVE-2025-71273 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-2025-71273?

Yes. CVE-2025-71273 has been patched. Fixed versions include 6.12.75, 6.18.16, 6.19.6 and others. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-71273 actively exploited?

No. CVE-2025-71273 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.