What’s Vulnerable › Vulnerabilities

CVE-2023-46300

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-22 · updated 2026-06-17
• Weakness: CWE-116

Description

iTerm2 before 3.4.20 allow (potentially remote) code execution because of mishandling of certain escape sequences related to tmux integration.

Affected products

• iTerm2: before 3.4.20 — fixed in 3.4.20

How to fix

Upgrade to a fixed version: iTerm2 3.4.20. Check the vendor advisory for mitigations.

References

• https://blog.solidsnail.com/posts/2023-08-28-iterm2-rce
• https://github.com/gnachman/iTerm2/commit/ae8192522661c34d1cbe57f6f9ef2ff0a337c2a5
• https://github.com/gnachman/iTerm2/commit/b2268b03b5f3d4cd8ca275eaef5d16d0fac20009
• https://iterm2.com/news.html
• https://blog.solidsnail.com/posts/2023-08-28-iterm2-rce
• https://github.com/gnachman/iTerm2/commit/ae8192522661c34d1cbe57f6f9ef2ff0a337c2a5
• https://github.com/gnachman/iTerm2/commit/b2268b03b5f3d4cd8ca275eaef5d16d0fac20009
• https://iterm2.com/news.html

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