What is CVE-2023-53434?

CVE-2023-53434 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.16 onward and patched in 6.1.30, 6.3.4 and 6.4. CVE-2023-53434 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53434?

CVE-2023-53434 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-2023-53434?

Yes, CVE-2023-53434 has been patched. Fixed versions include 6.1.30, 6.3.4 and 6.4. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53434 actively exploited?

CVE-2023-53434 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53434

Medium

In the Linux kernel, the following vulnerability has been resolved: remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores The IRAM is part of the HiFi DSP. According to hardware specification only 32-bits write are allowed otherwise we get a Kernel panic. Therefore add a custom memory copy and memset functions to deal with the above restriction.

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 5.16 and later are affected. Fixed in 6.1.30, 6.3.4, 6.4 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 6.1.30 6.1.x ✓ 6.3.4 6.3.x ✓ 6.4

References

The following references provide additional information about CVE-2023-53434 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/331cd77f3d02c35f98b48d1aa934c54c4e7102c8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/408ec1ff0caa340c57eecf4cbd14ef0132036a50
Patch
Kernel patch commit
https://git.kernel.org/stable/c/44361033a8806aabd0f49b24e5a2fc07232cc5ff
Patch

Details

CVE ID CVE-2023-53434

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-2023-53434?

CVE-2023-53434 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.16 onward and has been patched in 6.1.30, 6.3.4 and 6.4. CVE-2023-53434 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53434?

CVE-2023-53434 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-2023-53434?

Yes — CVE-2023-53434 has been patched. Fixed versions include 6.1.30, 6.3.4 and 6.4. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53434 actively exploited?

No — CVE-2023-53434 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.