VULNERABILITY INTELLIGENCE

CVE-2021-38173

CVSS score9.8 CRITICAL
EPSS probability3.16%
CISA KEVNot currently listed
Published2021-08-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Btrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh in authorized_keys.

Weakness classification

  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

Primary references