CVE-2021-34729
MEDIUMCisco IOS XE and IOS XE SD-WAN < 17.3.1a - Authenticated OS Command Injection via CLI Arguments
Title source: llmDescription
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software and Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges on an affected device. This vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input in the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands with elevated privileges on the underlying operating system. An attacker would need valid user credentials to exploit this vulnerability.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ioxesdwan-clicmdinj-7bYX5k3
Scores
CVSS v3
6.7
EPSS
0.0005
EPSS Percentile
16.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
CWE-77
Status
published
Products (2)
cisco/ios_xe
< 17.3.1a
cisco/ios_xe_sd-wan
< 17.3.1a
Published
Sep 23, 2021
Tracked Since
Feb 18, 2026