CVE-2020-24341: Altran Picotcp

Critical severity, CVSS 9.1. EPSS: 5% chance of exploitation in the next 30 days.

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The TCP input data processing function in pico_tcp.c does not validate the length of incoming TCP packets, which leads to an out-of-bounds read when assembling received packets into a data segment, eventually causing Denial-of-Service or an information leak.

Affected products

• Altran Picotcp: up to and including 1.7.0
• Altran Picotcp-NG: up to and including 1.7.0

Published 2020-12-11. Last modified 2026-06-17.