CVE-2023-0667: Wireshark

Medium severity, CVSS 6.5. EPSS: 2% chance of exploitation in the next 30 days.

Due to failure in validating the length provided by an attacker-crafted MSMMS packet, Wireshark version 4.0.5 and prior, in an unusual configuration, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark

Affected products

• Wireshark Wireshark: from 4.0.0, before 4.0.6 (fixed in 4.0.6)

Published 2023-06-07. Last modified 2026-06-17.