CVE-2023-35849: Virtualsquare Picotcp

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not properly check whether header sizes would result in accessing data outside of a packet.

Affected products

• Virtualsquare Picotcp: up to and including 2.1

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