What is CVE-2023-53400?

CVE-2023-53400 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.9 onward and patched in 4.14.316, 4.19.284, 5.4.244 and others. CVE-2023-53400 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53400?

CVE-2023-53400 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-2023-53400?

Yes, CVE-2023-53400 has been patched. Fixed versions include 4.14.316, 4.19.284, 5.4.244 and others. If you are running Linux kernel 3.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53400 actively exploited?

CVE-2023-53400 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53400

Medium

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix Oops by 9.1 surround channel names get_line_out_pfx() may trigger an Oops by overflowing the static array with more than 8 channels. This was reported for MacBookPro 12,1 with Cirrus codec. As a workaround, extend for the 9.1 channels and also fix the potential Oops by unifying the code paths accessing the same array with the proper size check.

Package Linux Kernel

Published 2025-09-18

Last modified 2026-01-14

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 3.9 and later are affected. Fixed in 4.14.316, 4.19.284, 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4, 6.4 and their respective stable series.

Affected from

≥ 3.9

Fixed in

✓ 4.14.316 4.14.x ✓ 4.19.284 4.19.x ✓ 5.4.244 5.4.x ✓ 5.10.181 5.10.x ✓ 5.15.113 5.15.x ✓ 6.1.30 6.1.x ✓ 6.3.4 6.3.x ✓ 6.4

References

The following references provide additional information about CVE-2023-53400 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/082dcd51667b29097500c824c37f24da997a6a8a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3b44ec8c5c44790a82f07e90db45643c762878c6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4ef155ddf9578bf035964d58739fdcd7dd44b4a4
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2023-53400

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-18

Modified 2026-01-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53400?

CVE-2023-53400 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.9 onward and has been patched in 4.14.316, 4.19.284, 5.4.244 and others. CVE-2023-53400 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53400?

CVE-2023-53400 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-2023-53400?

Yes — CVE-2023-53400 has been patched. Fixed versions include 4.14.316, 4.19.284, 5.4.244 and others. If you are running Linux kernel 3.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53400 actively exploited?

No — CVE-2023-53400 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.