What is CVE-2026-53361?

CVE-2026-53361 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 6.6.93 onward and patched in 6.6.144, 6.12.95, 6.18.38 and others. CVE-2026-53361 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53361?

CVE-2026-53361 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Is there a patch available for CVE-2026-53361?

Yes, CVE-2026-53361 has been patched. Fixed versions include 6.6.144, 6.12.95, 6.18.38 and others. If you are running Linux kernel 6.6.93 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53361 actively exploited?

CVE-2026-53361 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53361

High

In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() unix_schedule_gc() `- if (!gc_in_progress) `- if (!gc_in_progress) |- gc_in_progress = true | `- queue_work() | unix_gc() <----------------/ | | |- gc_in_progress = true ... `- queue_work() | | `- gc_in_progress = false | | unix_gc() <---------------------------------------------' | ... /* gc_in_progress == false */ | `- gc_in_progress = false unix_peek_fpl() relies on gc_in_progress not to confuse GC by MSG_PEEK. Let's set gc_in_progress to true in unix_gc().

Package Linux Kernel

Published 2026-07-04

Last modified 2026-07-22

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.6.93, 6.1.141, 6.9 and later are affected. Fixed in 6.6.144, 6.12.95, 6.18.38, 7.1 and their respective stable series.

Affected from

≥ 6.6.93 ≥ 6.1.141 ≥ 6.9

Fixed in

✓ 6.6.144 6.6.x ✓ 6.12.95 6.12.x ✓ 6.18.38 6.18.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082

Patch
Kernel Git
https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a

Patch
Kernel Git
https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0

Patch
Kernel Git
https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af

Patch

Details

CVE ID CVE-2026-53361

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-07-04

Modified 2026-07-22

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53361?

CVE-2026-53361 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 6.6.93 onward and has been patched in 6.6.144, 6.12.95, 6.18.38 and others. CVE-2026-53361 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53361?

CVE-2026-53361 has a CVSS score of 7.1 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:N/I:H/A:H.
Is there a patch available for CVE-2026-53361?

Yes. CVE-2026-53361 has been patched. Fixed versions include 6.6.144, 6.12.95, 6.18.38 and others. If you are running Linux kernel 6.6.93 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53361 actively exploited?

No. CVE-2026-53361 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.