What is CVE-2023-53170?

CVE-2023-53170 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.3 onward and patched in 6.4.5 and 6.5. CVE-2023-53170 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53170?

CVE-2023-53170 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-2023-53170?

Yes, CVE-2023-53170 has been patched. Fixed versions include 6.4.5 and 6.5. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53170 actively exploited?

CVE-2023-53170 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53170

Medium

In the Linux kernel, the following vulnerability has been resolved: net: dsa: Removed unneeded of_node_put in felix_parse_ports_node Remove unnecessary of_node_put from the continue path to prevent child node from being released twice, which could avoid resource leak or other unexpected issues.

Package Linux Kernel

Published 2025-09-15

Last modified 2025-12-03

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 6.3 and later are affected. Fixed in 6.4.5, 6.5 and their respective stable series.

Affected from

≥ 6.3

Fixed in

✓ 6.4.5 6.4.x ✓ 6.5

References

The following references provide additional information about CVE-2023-53170 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/04499f28b40bfc24f20b0e2331008bb90a54a6cf
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7ead10b44b79ce8bfcd51e749d54e009de5f511a
Patch

Details

CVE ID CVE-2023-53170

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-15

Modified 2025-12-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53170?

CVE-2023-53170 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.3 onward and has been patched in 6.4.5 and 6.5. CVE-2023-53170 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53170?

CVE-2023-53170 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-2023-53170?

Yes — CVE-2023-53170 has been patched. Fixed versions include 6.4.5 and 6.5. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53170 actively exploited?

No — CVE-2023-53170 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.