SB20260816529 - Improper input validation in Linux kernel netfilter ipvs

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Main Vulnerability Database SB20260816529

SB20260816529 - Improper input validation in Linux kernel netfilter ipvs

Published: August 16, 2026

Security Bulletin ID SB20260816529
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper input validation (CVE-ID: CVE-2026-68477)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause incorrect packet processing.

The vulnerability exists due to improper handling of ipv6 transport offsets in ipvs application and icmpv6 response processing when handling ipv6 packets with extension headers. A remote attacker can send specially crafted ipv6 traffic to cause incorrect packet processing.

The issue affects TCP application handling and ICMPv6 checksum validation in IPVS for IPv6 traffic.


Remediation

Install update from vendor's website.

References