CVE-2026-31416

MEDIUM

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: account for netlink header size This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size. This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 4/13/2026Modified: 7/14/2026

Related Intelligence (1)

CRITICALAi

Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-209-04.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommend

CVE-2021-41617CVE-2023-28531
CISA Advisories

References (10)

https://git.kernel.org/stable/c/09883bf257f4243ed5a1fd35078ec6f0d0f3696aPatchhttps://git.kernel.org/stable/c/4ec216410fac9de83c99177a160ebb8d42fad075Patchhttps://git.kernel.org/stable/c/607245c4dbb86d9a10dd8388da0fb82170a99b61Patchhttps://git.kernel.org/stable/c/6b419700e459fbf707ca1543b7c1b57a60fedb73Patchhttps://git.kernel.org/stable/c/6d52a4a0520a6696bdde51caa11f2d6821cd0c01Patchhttps://git.kernel.org/stable/c/761b45c661af48da6a065868d59ab1e1f64fd9b6Patchhttps://git.kernel.org/stable/c/88a8f56e6276f616baad4274c6b8e4683e26e520Patchhttps://git.kernel.org/stable/c/f08ffa3e1c8e36b6131f69c5eb23700c28cbd262Patchhttps://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html