CVE-2021-45444

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Feb 14, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-45444: High severity, CVSS 7.8 | Vulnix