What is CVE-2026-23153?

CVE-2026-23153 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 6.18 onward and patched in 6.18.9 and 6.19. CVE-2026-23153 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23153?

CVE-2026-23153 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-23153?

Yes, CVE-2026-23153 has been patched. Fixed versions include 6.18.9 and 6.19. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23153 actively exploited?

CVE-2026-23153 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-2026-23153

Medium

In the Linux kernel, the following vulnerability has been resolved: firewire: core: fix race condition against transaction list The list of transaction is enumerated without acquiring card lock when processing AR response event. This causes a race condition bug when processing AT request completion event concurrently. This commit fixes the bug by put timer start for split transaction expiration into the scope of lock. The value of jiffies in card structure is referred before acquiring the lock.

Package Linux Kernel

Published 2026-02-14

Last modified 2026-03-18

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2026-23153 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 6.18 and later are affected. Fixed in 6.18.9, 6.19 and their respective stable series.

Affected from

≥ 6.18

Fixed in

✓ 6.18.9 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2026-23153 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/20e01bba2ae4898ce65cdcacd1bd6bec5111abd9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b038874e31fc3caa0b0d5abd259dd54b918ad4a1
Patch

Details

CVE ID CVE-2026-23153

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2026-02-14

Modified 2026-03-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23153?

CVE-2026-23153 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.9 and 6.19. CVE-2026-23153 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23153?

CVE-2026-23153 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-23153?

Yes — CVE-2026-23153 has been patched. Fixed versions include 6.18.9 and 6.19. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23153 actively exploited?

No — CVE-2026-23153 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →