CVE-2024-20320

HIGH

Cisco IOS XR - Privilege Escalation

Title source: llm
STIX 2.1

Description

A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device.

Scores

CVSS v3 7.8
EPSS 0.0005
EPSS Percentile 17.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-266
Status published
Products (25)
cisco/ios_xr 7.2.1
cisco/ios_xr 7.2.2
cisco/ios_xr 7.3.1
cisco/ios_xr 7.3.2
cisco/ios_xr 7.3.3
cisco/ios_xr 7.3.5
cisco/ios_xr 7.3.15
cisco/ios_xr 7.4.1
cisco/ios_xr 7.4.2
cisco/ios_xr 7.5.1
... and 15 more
Published Mar 13, 2024
Tracked Since Feb 18, 2026