CVE-2021-3197: Debian Linux

Critical severity, CVSS 9.8. EPSS: 72.3% chance of exploitation in the next 30 days.

An issue was discovered in SaltStack Salt before 3002.5. The salt-api's ssh client is vulnerable to a shell injection by including ProxyCommand in an argument, or via ssh_options provided in an API request.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• SaltStack Salt: before 2015.8.10 (fixed in 2015.8.10); from 2015.8.11, before 2015.8.13 (fixed in 2015.8.13); from 2016.3.0, before 2016.3.4 (fixed in 2016.3.4); from 2016.3.5, before 2016.3.6 (fixed in 2016.3.6); from 2016.3.7, before 2016.3.8 (fixed in 2016.3.8); from 2016.3.9, before 2016.11.3 (fixed in 2016.11.3); …

Published 2021-02-27. Last modified 2026-06-17.