PT-2026-32342 · Linux · Linux Kernel

Published 2026-04-13 · Updated 2026-05-03 · CVE-2026-31416

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 An issue exists in the netfilter nfnetlink log component where the NLMSG DONE does not properly account for the netlink header size, considering only the attribute size. This can lead to a WARN splat and the subsequent drop of the netlink message.

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

Related Identifiers

CVE-2026-31416

ECHO-9C80-2F20-C8B4

OESA-2026-2172

OESA-2026-2173

OESA-2026-2176

Affected Products

Linux Kernel

References · 47

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31416 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-71089 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23442 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23455 · Security Note
• https://git.kernel.org/stable/c/f08ffa3e1c8e36b6131f69c5eb23700c28cbd262 · Patch
• https://osv.dev/vulnerability/OESA-2026-2172 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31416 · Vendor Advisory
• https://git.kernel.org/stable/c/607245c4dbb86d9a10dd8388da0fb82170a99b61 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-27558 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23452 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31416 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23447 · Security Note
• https://git.kernel.org/stable/c/4ec216410fac9de83c99177a160ebb8d42fad075 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23449 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31416 · Vendor Advisory