What’s Vulnerable › Vulnerabilities

CVE-2023-26545

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-25 · updated 2026-06-17
• Weakness: CWE-415

Description

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.

Affected products

• Debian Linux: 10.0
• Linux kernel: from 4.1 before 6.1.13 — fixed in 6.1.13
• NetApp H300S Firmware: all versions
• NetApp H410C Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700S Firmware: all versions

How to fix

Upgrade to a fixed version: Linux kernel 6.1.13. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377
• https://github.com/torvalds/linux/commit/fda6c89fe3d9aca073495a664e1d5aea28cd4377
• https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
• https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
• https://security.netapp.com/advisory/ntap-20230316-0009/
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377
• https://github.com/torvalds/linux/commit/fda6c89fe3d9aca073495a664e1d5aea28cd4377
• https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
• https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
• https://security.netapp.com/advisory/ntap-20230316-0009/

Get alerted when CVE-2023-26545 or the next vulnerability affects your stack