Back to Database
Status published
Medium
CVE-2021-34722
Cisco IOS XR Software Command Injection Vulnerabilities
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-34722
Credits & Attribution
No credits recorded in the NVD database.
More from Cisco
View All →CVE-2025-20393
Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability
Critical
10
CVE-2025-20377
Cisco Unified Intelligence Center API Information Disclosure Vulnerability
Medium
4.3
CVE-2025-20376
Cisco Unified Contact Center Express Remote Code Execution Vulnerability
Medium
6.5
CVE-2025-20375
Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability
Medium
6.5
CVE-2025-20374
Cisco Unified Contact Center Express Arbitrary File Download Vulnerability
Medium
4.9
Affected Vendor
Cisco
View all reports →Affected Software
Cisco IOS XR Software
Vulnerable Versions:
Unknown
Timeline
Official Publish:
September 9th, 2021
Last Modified:
November 7th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H