What is CVE-2026-43414?

CVE-2026-43414 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10, affecting Linux kernel versions from 5.15.154 onward and patched in 6.19.9 and 7.0. CVE-2026-43414 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-43414?

CVE-2026-43414 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-2026-43414?

Yes, CVE-2026-43414 has been patched. Fixed versions include 6.19.9 and 7.0. If you are running Linux kernel 5.15.154 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-43414 actively exploited?

CVE-2026-43414 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-43414

Critical

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double free In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free(). When an error happens, this function is called by qla2x00_sp_release(), when kref_put() releases the first and the last reference. qla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport(). Doing it one more time after kref_put() is a bad idea.

Package Linux Kernel

Published 2026-05-08

Last modified 2026-05-12

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

Affected versions

Linux kernel versions 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9 and later are affected. Fixed in 6.19.9, 7.0 and their respective stable series.

Affected from

≥ 5.15.154 ≥ 6.1.84 ≥ 6.6.24 ≥ 6.7.12 ≥ 6.8.3 ≥ 6.9

Fixed in

✓ 6.19.9 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-43414 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/c0b7da13a04bd70ef6070bfb9ea85f582294560a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b
Patch

Details

CVE ID CVE-2026-43414

Severity Critical

CVSS score 9.8 / 10

CVSS version 3.1

Published 2026-05-08

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-43414?

CVE-2026-43414 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 . It affects Linux kernel versions from 5.15.154 onward and has been patched in 6.19.9 and 7.0. CVE-2026-43414 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-43414?

CVE-2026-43414 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-2026-43414?

Yes — CVE-2026-43414 has been patched. Fixed versions include 6.19.9 and 7.0. If you are running Linux kernel 5.15.154 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-43414 actively exploited?

No — CVE-2026-43414 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.