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iTerm2 < 3.3.6 RCE (macOS)

critical Nessus Plugin ID 278761

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Synopsis

An application installed on the remote macOS host is affected by a remote code execution vulnerability.

Description

The version of iTerm2 installed on the remote host is prior to 3.3.6. It is, therefore, affected by a vulnerability:

 - 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 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. (CVE-2019-9535)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to iTerm2 version 3.3.6 or later.

See Also

https://iterm2.com/news.html

Plugin Details

Severity: Critical

ID: 278761

File Name: iterm2_macos_3_3_6.nasl

Version: 1.1

Type: local

Agent: macosx

Published: 12/16/2025

Updated: 12/16/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-9535

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:iterm2:iterm2

Required KB Items: Host/MacOSX/Version, installed_sw/iTerm2

Patch Publication Date: 10/9/2019

Vulnerability Publication Date: 10/9/2019

Reference Information

CVE: CVE-2019-9535