What is CVE-2026-53367?

CVE-2026-53367 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.17.10 onward and patched in 6.18.30, 7.0.7 and 7.1. CVE-2026-53367 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53367?

CVE-2026-53367 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-2026-53367?

Yes, CVE-2026-53367 has been patched. Fixed versions include 6.18.30, 7.0.7 and 7.1. If you are running Linux kernel 6.17.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53367 actively exploited?

CVE-2026-53367 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53367

Medium

In the Linux kernel, the following vulnerability has been resolved: selinux: fix avdcache auditing The per-task avdcache was incorrectly saving and reusing the audited vector computed by avc_audit_required() rather than recomputing based on the currently requested permissions and distinguishing the denied versus allowed cases. As a result, some permission checks were not being audited, e.g. directory write checks after a previously cached directory search check. [PM: line wrap tweaks]

Package Linux Kernel

Published 2026-07-19

Last modified 2026-07-29

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 6.17.10, 6.18 and later are affected. Fixed in 6.18.30, 7.0.7, 7.1 and their respective stable series.

Affected from

≥ 6.17.10 ≥ 6.18

Fixed in

✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1

References

3 total

Kernel Git
https://git.kernel.org/stable/c/bce6a32bc888dfebb6a7d4dee454228b71ed8369

Patch
Kernel Git
https://git.kernel.org/stable/c/e3e722ea88e051ae5361dc540c01ba18f87b5ffd

Patch
Kernel Git
https://git.kernel.org/stable/c/f92d542577db878acfd21cc18dab23d03023b217

Patch

Details

CVE ID CVE-2026-53367

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-07-19

Modified 2026-07-29

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53367?

CVE-2026-53367 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.17.10 onward and has been patched in 6.18.30, 7.0.7 and 7.1. CVE-2026-53367 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53367?

CVE-2026-53367 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-2026-53367?

Yes. CVE-2026-53367 has been patched. Fixed versions include 6.18.30, 7.0.7 and 7.1. If you are running Linux kernel 6.17.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53367 actively exploited?

No. CVE-2026-53367 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.