CVE-2023-39540: Weston-Embedded Uc-TCP-IP

Medium severity, CVSS 5.9. EPSS: 0.8% chance of exploitation in the next 30 days.

A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv4 ICMP packet.

Affected products

• Weston-Embedded Uc-TCP-IP: version 3.06.01 only

Published 2024-02-20. Last modified 2026-06-17.