What is CVE-2026-53318?

CVE-2026-53318 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 6.11 onward and patched in 6.12.91, 6.18.33, 7.0.10 and others. CVE-2026-53318 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53318?

CVE-2026-53318 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-2026-53318?

Yes, CVE-2026-53318 has been patched. Fixed versions include 6.12.91, 6.18.33, 7.0.10 and others. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53318 actively exploited?

CVE-2026-53318 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2026-53318

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_tx_check_aggr() Move the NULL check for 'sta' before dereferencing it to prevent a possible crash.

Package Linux Kernel

Published 2026-06-26

Last modified 2026-07-06

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-476

CVE-2026-53318 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.11 and later are affected. Fixed in 6.12.91, 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 6.11

Fixed in

✓ 6.12.91 6.12.x ✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/28ed0b61f67386c0ba1213227d350005000240fd

Patch
Kernel Git
https://git.kernel.org/stable/c/83ae3a18ba957257b4c406273d2da2caeea2b439

Patch
Kernel Git
https://git.kernel.org/stable/c/93d0694fb56de4628a921244d7f100c28acd2def

Patch
Kernel Git
https://git.kernel.org/stable/c/b0332428a8d4cf93752eda9e2b0d5585525e689f

Patch

Details

CVE ID CVE-2026-53318

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-26

Modified 2026-07-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53318?

CVE-2026-53318 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 6.11 onward and has been patched in 6.12.91, 6.18.33, 7.0.10 and others. CVE-2026-53318 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53318?

CVE-2026-53318 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-2026-53318?

Yes. CVE-2026-53318 has been patched. Fixed versions include 6.12.91, 6.18.33, 7.0.10 and others. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53318 actively exploited?

No. CVE-2026-53318 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.