What is CVE-2023-26545?

CVE-2023-26545 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10. CVE-2023-26545 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-26545?

CVE-2023-26545 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-26545?

No patch is currently available for CVE-2023-26545. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-26545 actively exploited?

CVE-2023-26545 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-26545

Medium

In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device.

Package Linux Kernel

Published 2023-02-25

Last modified 2025-06-25

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-415

CVE-2023-26545 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2023-26545 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13

Release Notes
Debian Security
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20230316-0009/

Third Party Advisory
Kernel patch commit
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/fda6c89fe3d9aca073495a664e1d5aea28cd4377
Patch

Details

CVE ID CVE-2023-26545

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2023-02-25

Modified 2025-06-25

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-26545?

CVE-2023-26545 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 . CVE-2023-26545 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-26545?

CVE-2023-26545 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-26545?

No patch is currently available for CVE-2023-26545. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-26545 actively exploited?

No — CVE-2023-26545 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.