CVE-2021-34722: Cisco IOS XR

Medium severity, CVSS 6.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

• Cisco IOS XR: from 7.1.1, before 7.3.2 (fixed in 7.3.2); from 7.4.0, before 7.4.1 (fixed in 7.4.1)

Published 2021-09-09. Last modified 2026-06-17.