CVE Database›Document archive›CVE-2026-43329

CVE-2026-43329

kernel: netfilter: flowtable: strictly check for maximum number of actions

Loading…

Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · May 8, 2026

Updated · October 9, 2026

Description

A flaw was found in the Netfilter flowtable component of the Linux kernel. This vulnerability occurs because the system does not strictly check the maximum number of hardware offload actions for IPv6, allowing it to process more actions than supported. This could potentially lead to system instability or a denial of service (DoS) condition, where the affected system becomes unresponsive.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling