CVE-2026-20114 — Improper Validation of Syntactic Correctness of Input in Cisco IOS XE Software

CWE-1286 — Improper Validation of Syntactic Correctness of Input4 documents4 sources

Severity

5.4MEDIUMNVD

EPSS

0.0%

top 91.02%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Cisco IOS XE Software

Timeline

PublishedMar 25

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…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.5

Affected Packages1 packages

▶CVEListV5cisco/cisco_ios_xe_software176 versions+175

🔴Vulnerability Details

CVEList

CVE-2026-20114: A vulnerability in the Lobby Ambassador web-based management API of Cisco IOS XE Software could allow an authenticated, remote attacker to elevate the↗2026-03-25

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GHSA

GHSA-3855-fjjh-9xh2: A vulnerability in the Lobby Ambassador web-based management API of Cisco IOS XE Software could allow an authenticated, remote attacker to elevate the↗2026-03-25

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📋Vendor Advisories

Cisco

Cisco IOS XE Software Lobby Ambassador Privilege Escalation Vulnerability↗2026-03-25

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