CVE-2020-3400

HIGH

Cisco IOS XE - Privilege Escalation

Title source: llm
STIX 2.1

Description

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to utilize parts of the web UI for which they are not authorized.The vulnerability is due to insufficient authorization of web UI access requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web UI. A successful exploit could allow the attacker to utilize parts of the web UI for which they are not authorized. This could allow a Read-Only user to perform actions of an Admin user.

References (1)

Core 1

Scores

CVSS v3 8.8
EPSS 0.0020
EPSS Percentile 41.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/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-862
Status published
Products (15)
cisco/ios_xe 16.2.2
cisco/ios_xe 16.3.1
cisco/ios_xe 16.3.1a
cisco/ios_xe 16.3.2
cisco/ios_xe 16.3.3
cisco/ios_xe 16.3.4
cisco/ios_xe 16.3.5
cisco/ios_xe 16.3.5b
cisco/ios_xe 16.3.6
cisco/ios_xe 16.3.7
... and 5 more
Published Sep 24, 2020
Tracked Since Feb 18, 2026