What is CVE-2026-43204?

CVE-2026-43204 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.18 onward and patched in 6.19.6 and 7.0. CVE-2026-43204 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-43204?

CVE-2026-43204 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-2026-43204?

Yes, CVE-2026-43204 has been patched. Fixed versions include 6.19.6 and 7.0. If you are running Linux kernel 4.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-43204 actively exploited?

CVE-2026-43204 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-43204

Medium

In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: q6asm: drop DSP responses for closed data streams 'Commit a354f030dbce ("ASoC: qcom: q6asm: handle the responses after closing")' attempted to ignore DSP responses arriving after a stream had been closed. However, those responses were still handled, causing lockups. Fix this by unconditionally dropping all DSP responses associated with closed data streams.

Package Linux Kernel

Published 2026-05-06

Last modified 2026-05-11

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 4.18 and later are affected. Fixed in 6.19.6, 7.0 and their respective stable series.

Affected from

≥ 4.18

Fixed in

✓ 6.19.6 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-43204 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/3249251eac6081d5169ba09f2d9cca66ab0cab0d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a066a81ee0c1b6cdbd81393536c3b2d19ccef25
Patch

Details

CVE ID CVE-2026-43204

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-06

Modified 2026-05-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-43204?

CVE-2026-43204 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.18 onward and has been patched in 6.19.6 and 7.0. CVE-2026-43204 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-43204?

CVE-2026-43204 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-2026-43204?

Yes — CVE-2026-43204 has been patched. Fixed versions include 6.19.6 and 7.0. If you are running Linux kernel 4.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-43204 actively exploited?

No — CVE-2026-43204 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.