VULNERABILITY INTELLIGENCE

CVE-2023-1206

CVSS score5.7 MEDIUM
EPSS probability0.63%
CISA KEVNot currently listed
Published2023-06-30
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Weakness classification

  • secalert@redhat.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references