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 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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-lobby-privesc-KwxBqJy

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-25 16:16

Updated : 2026-06-17 10:17

NVD link : CVE-2026-20114

Mitre link : CVE-2026-20114

CVE.ORG link : CVE-2026-20114

JSON object : View

Products Affected

No product.

CWE

CWE-1286

Improper Validation of Syntactic Correctness of Input

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"affected", "version": "17.18.1"}, {"status": "affected", "version": "17.18.1w"}, {"status": "affected", "version": "17.18.1a"}]}]}], "published": "2026-03-25T16:16:16.117", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-lobby-privesc-KwxBqJy", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-1286"}]}], "descriptions": [{"lang": "en", "value": "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. \r\n\r 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."}, {"lang": "es", "value": "Una vulnerabilidad en la API de gesti\u00f3n basada en web de Lobby Ambassador de Cisco IOS XE Software podr\u00eda permitir a un atacante remoto autenticado elevar sus privilegios y acceder a APIs de gesti\u00f3n que normalmente no estar\u00edan disponibles para usuarios de Lobby Ambassador. Esta vulnerabilidad existe porque los par\u00e1metros que son recibidos por un endpoint de API no son validados suficientemente. Un atacante podr\u00eda explotar esta vulnerabilidad autentic\u00e1ndose como un usuario de Lobby Ambassador y enviando una solicitud HTTP manipulada a un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante crear un nuevo usuario con acceso de nivel de privilegio 1 a la API de gesti\u00f3n basada en web. El atacante podr\u00eda entonces acceder al dispositivo con estas nuevas credenciales y privilegios."}], "lastModified": "2026-06-17T10:17:08.267", "sourceIdentifier": "psirt@cisco.com"}