CVE-2026-20114

MEDIUM

Cisco IOS XE Software <16.11.1 - Privilege Escalation

Title source: llm
STIX 2.1

Description

A vulnerability in the Lobby Ambassador web-based management API of Cisco IOS XE Software could allow an authenticated, remote attacker to elevate their privileges and access management APIs that would not normally be available for Lobby Ambassador users. This vulnerability exists because parameters that are received by an API endpoint are not sufficiently validated. An attacker could exploit this vulnerability by authenticating as a Lobby Ambassador user and sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to create a new user with privilege level 1 access to the web-based management API. The attacker would then be able to access the device with these new credentials and privileges.

Scores

CVSS v3 5.4
EPSS 0.0004
EPSS Percentile 10.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1286
Status published
Products (50)
Cisco/Cisco IOS XE Software 16.11.1
Cisco/Cisco IOS XE Software 16.11.1a
Cisco/Cisco IOS XE Software 16.11.1b
Cisco/Cisco IOS XE Software 16.11.1s
Cisco/Cisco IOS XE Software 16.11.2
Cisco/Cisco IOS XE Software 16.12.1
Cisco/Cisco IOS XE Software 16.12.10
Cisco/Cisco IOS XE Software 16.12.10a
Cisco/Cisco IOS XE Software 16.12.11
Cisco/Cisco IOS XE Software 16.12.12
... and 40 more
Published Mar 25, 2026
Tracked Since Mar 25, 2026