What’s Vulnerable › Vulnerabilities

CVE-2023-39540

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-02-20 · updated 2026-06-17
• Weakness: CWE-126

Description

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: 3.06.01

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828
• https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1828

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