What is CVE-2023-53043?

CVE-2023-53043 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 6.1.22, 6.2.9 and 6.3. CVE-2023-53043 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53043?

CVE-2023-53043 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-2023-53043?

Yes, CVE-2023-53043 has been patched. Fixed versions include 6.1.22, 6.2.9 and 6.3. 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-2023-53043 actively exploited?

CVE-2023-53043 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53043

Medium

In the Linux kernel, the following vulnerability has been resolved: arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent If the controller is not marked as cache coherent, then kernel will try to ensure coherency during dma-ops and that may cause data corruption. So, mark the PCIe node as dma-coherent as the devices on PCIe bus are cache coherent.

Package Linux Kernel

Published 2025-05-02

Last modified 2025-11-12

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 6.1.22, 6.2.9, 6.3 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 6.1.22 6.1.x ✓ 6.2.9 6.2.x ✓ 6.3

References

The following references provide additional information about CVE-2023-53043 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/267b899375bf38944d915c9654d6eb434edad0ce
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a63441e83724fee1ef3fd37b237d40d90780766
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e43bba938e2c9104bb4f8bc417ac4d7bb29755e1
Patch

Details

CVE ID CVE-2023-53043

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-02

Modified 2025-11-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53043?

CVE-2023-53043 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 6.1.22, 6.2.9 and 6.3. CVE-2023-53043 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53043?

CVE-2023-53043 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-2023-53043?

Yes — CVE-2023-53043 has been patched. Fixed versions include 6.1.22, 6.2.9 and 6.3. 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-2023-53043 actively exploited?

No — CVE-2023-53043 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.