CVE-2021-34725

MEDIUM

Cisco IOS XE SD-WAN < 17.2.1r - Authenticated OS Command Injection via CLI

Title source: llm
STIX 2.1

Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root-level privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root-level privileges.

References (1)

Core 1

Scores

CVSS v3 6.7
EPSS 0.0010
EPSS Percentile 27.2%
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 (1)
cisco/ios_xe_sd-wan < 17.2.1r
Published Sep 23, 2021
Tracked Since Feb 18, 2026