CVE-2023-52340: Linux Kernel

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

The IPv6 implementation in the Linux kernel before 6.3 has a net/ipv6/route.c max_size threshold that can be consumed easily, e.g., leading to a denial of service (network is unreachable errors) when IPv6 packets are sent in a loop via a raw socket.

Affected products

• Linux Linux Kernel: before 6.3 (fixed in 6.3)

Published 2024-07-05. Last modified 2026-06-17.