PT-2026-39128 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-15 · CVE-2026-43467

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A crash occurs in the net/mlx5 component when transitioning to switchdev mode on devices that do not support IPsec. The issue is caused by the system attempting to clean up IPsec resources without first verifying if the device supports IPsec.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-43467

Affected Products

Linux Kernel

References · 16

• https://cve.org/CVERecord?id=CVE-2026-43467 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43467 · Security Note
• https://ubuntu.com/security/CVE-2026-43467 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43467 · Vendor Advisory
• https://git.kernel.org/stable/c/05c9a6df3646cdd25e0e10e6ef2d20cdba3ed8f9 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43467 · Vendor Advisory
• https://git.kernel.org/stable/c/835778685f157b4fd4683b670cfe4010265bac60 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43467 · Vendor Advisory
• https://git.kernel.org/stable/c/bc72f739f398d9d2e4f3d06f3f75fe98876d5579 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43467 · Vendor Advisory
• https://git.kernel.org/stable/c/24b2795f9683e092dc22a68f487e7aaaf2ddafea · Patch
• https://twitter.com/CVEnew/status/2052767594416148607 · Twitter Post
• https://t.me/CVEtracker/53115 · Telegram Post
• https://docs.bell-sw.com/security/cves/CVE-2026-43467 · Note
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post