What is CVE-2026-43320?

CVE-2026-43320 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.10.13 onward and patched in 6.12.75, 6.18.16, 6.19.6 and others. CVE-2026-43320 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-43320?

CVE-2026-43320 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-43320?

Yes, CVE-2026-43320 has been patched. Fixed versions include 6.12.75, 6.18.16, 6.19.6 and others. If you are running Linux kernel 6.10.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-43320 actively exploited?

CVE-2026-43320 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-43320

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dsc eDP issue [why] Need to add function hook check before use

Package Linux Kernel

Published 2026-05-08

Last modified 2026-05-15

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.10.13, 6.11.2, 6.12 and later are affected. Fixed in 6.12.75, 6.18.16, 6.19.6, 7.0 and their respective stable series.

Affected from

≥ 6.10.13 ≥ 6.11.2 ≥ 6.12

Fixed in

✓ 6.12.75 6.12.x ✓ 6.18.16 6.18.x ✓ 6.19.6 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-43320 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/0481be9f12d8324789ccebf1e5fd0704b6e3fc99
Patch
Kernel patch commit
https://git.kernel.org/stable/c/11718976c53a258c4d107aa05d68773379d0006f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/878a4b73c11111ff5f820730f59a7f8c6fd59374
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2026-43320

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-08

Modified 2026-05-15

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-43320?

CVE-2026-43320 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.10.13 onward and has been patched in 6.12.75, 6.18.16, 6.19.6 and others. CVE-2026-43320 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-43320?

CVE-2026-43320 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-43320?

Yes — CVE-2026-43320 has been patched. Fixed versions include 6.12.75, 6.18.16, 6.19.6 and others. If you are running Linux kernel 6.10.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-43320 actively exploited?

No — CVE-2026-43320 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.