What is CVE-2026-23153?

CVE-2026-23153 is a medium-severity vulnerability in Linux, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2026-02-14.

How severe is CVE-2026-23153?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Linux

CVE-2026-23153

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.

Vulnerability class: Race Condition

EPSS: 0.001 (0.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions b5725cfa4120a4d234ab112aad151d731531d093, 6.18, 0
Linux Linux_kernel — versions 6.19

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-23153?: CVE-2026-23153 is a medium-severity vulnerability in Linux, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2026-02-14.
How severe is CVE-2026-23153?: Medium severity. CVSS v3 base score is 4.7 out of 10.