What is CVE-2023-53808?

CVE-2023-53808 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.0 onward and patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-53808 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53808?

CVE-2023-53808 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-53808?

Yes, CVE-2023-53808 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53808 actively exploited?

CVE-2023-53808 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53808

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix memory leak in mwifiex_histogram_read() Always free the zeroed page on return from 'mwifiex_histogram_read()'.

Package Linux Kernel

Published 2025-12-09

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 4.0 and later are affected. Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6 and their respective stable series.

Affected from

≥ 4.0

Fixed in

✓ 4.14.326 4.14.x ✓ 4.19.295 4.19.x ✓ 5.4.257 5.4.x ✓ 5.10.195 5.10.x ✓ 5.15.132 5.15.x ✓ 6.1.53 6.1.x ✓ 6.4.16 6.4.x ✓ 6.5.3 6.5.x ✓ 6.6

References

The following references provide additional information about CVE-2023-53808 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/0c4240d23db525208fd40dd6371ca3254fa1b93d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/308eb3a609ac39ca9c3e466b35e8825007c8d826
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5d66b32a6ecf2e2e1a9523eaa4f8b314832fe06c
Patch

9 patch commits total View all on NVD

Frequently asked questions

What is CVE-2023-53808?

CVE-2023-53808 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.0 onward and has been patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-53808 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-53808?

Yes — CVE-2023-53808 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53808 actively exploited?

No — CVE-2023-53808 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.