What is CVE-2026-53086?

CVE-2026-53086 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 4.2 onward and patched in 6.1.175, 6.6.141, 6.12.91 and others. CVE-2026-53086 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53086?

CVE-2026-53086 has a CVSS score of 9.8 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-53086?

Yes, CVE-2026-53086 has been patched. Fixed versions include 6.1.175, 6.6.141, 6.12.91 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53086 actively exploited?

CVE-2026-53086 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2026-53086

Critical

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix racing timeout handler The bcmgenet_timeout handler tries to take down all tx queues when a single queue times out. This is over zealous and causes many race conditions with queues that are still chugging along. Instead lets only restart the timed out queue.

Package Linux Kernel

Published 2026-06-24

Last modified 2026-07-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.8

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2026-53086 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.2 and later are affected. Fixed in 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 4.2

Fixed in

✓ 6.1.175 6.1.x ✓ 6.6.141 6.6.x ✓ 6.12.91 6.12.x ✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

6 total

Kernel Git
https://git.kernel.org/stable/c/5393b2b5bee2ac51a0043dc7f4ac3475f053d08d

Patch
Kernel Git
https://git.kernel.org/stable/c/681fdfe823b4f1036ed50b58b8838c7917ea389c

Patch
Kernel Git
https://git.kernel.org/stable/c/7ce1c26aac3b318886a57425f64b522da7389153

Patch
Kernel Git
https://git.kernel.org/stable/c/c270e2bec3e55a716d25c35341091339457ac883

Patch
Kernel Git
https://git.kernel.org/stable/c/e8206538cbaf4f4068e99a4cb1138690a1e00499

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2026-53086

Severity Critical

CVSS score 9.8 / 10

CVSS version 3.1

Published 2026-06-24

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53086?

CVE-2026-53086 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 4.2 onward and has been patched in 6.1.175, 6.6.141, 6.12.91 and others. CVE-2026-53086 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53086?

CVE-2026-53086 has a CVSS score of 9.8 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-53086?

Yes. CVE-2026-53086 has been patched. Fixed versions include 6.1.175, 6.6.141, 6.12.91 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53086 actively exploited?

No. CVE-2026-53086 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.