What is CVE-2026-31506?

CVE-2026-31506 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.6 onward and patched in 6.12.80, 6.18.21, 6.19.11 and others. CVE-2026-31506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-31506?

CVE-2026-31506 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-31506?

Yes, CVE-2026-31506 has been patched. Fixed versions include 6.12.80, 6.18.21, 6.19.11 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-31506 actively exploited?

CVE-2026-31506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-31506

High

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix double free of WoL irq We do not need to free wol_irq since it was instantiated with devm_request_irq(). So devres will free for us.

Package Linux Kernel

Published 2026-04-22

Last modified 2026-04-28

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-415

CVE-2026-31506 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.6 and later are affected. Fixed in 6.12.80, 6.18.21, 6.19.11, 7.0 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.12.80 6.12.x ✓ 6.18.21 6.18.x ✓ 6.19.11 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-31506 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/121a6ad9cd42ba3bfc57deae93e3326515c2afe1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a30509ce6a29bdf18e0802383c524a7b2357ec0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9e5f5c07cc7d66522f8c9676c28605eba5d4a20e
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2026-31506

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-04-22

Modified 2026-04-28

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-31506?

CVE-2026-31506 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.6 onward and has been patched in 6.12.80, 6.18.21, 6.19.11 and others. CVE-2026-31506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-31506?

CVE-2026-31506 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-31506?

Yes — CVE-2026-31506 has been patched. Fixed versions include 6.12.80, 6.18.21, 6.19.11 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-31506 actively exploited?

No — CVE-2026-31506 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.