CVE-2019-9535: ITERM2

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

A vulnerability exists in the way that iTerm2 integrates with tmux's control mode, which may allow an attacker to execute arbitrary commands by providing malicious output to the terminal. This affects versions of iTerm2 up to and including 3.3.5. This vulnerability may allow an attacker to execute arbitrary commands on their victim's computer by providing malicious output to the terminal. It could be exploited using command-line utilities that print attacker-controlled content.

Affected products

• ITERM2 ITERM2: up to and including 3.3.5

Published 2019-10-09. Last modified 2026-06-17.