CVE-2023-30463: Altran Picotcp

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

Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.

Affected products

• Altran Picotcp: up to and including 1.7.0

Published 2023-04-19. Last modified 2026-06-17.