CVE-2025-20126 - CVE House
Back to Database
Status published Medium CVE-2025-20126

Cisco ThousandEyes Endpoint Agent Certificate Validation Vulnerability

Vulnerability Description

A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information. This vulnerability exists because the affected software does not properly validate certificates for hosted metrics services. An on-path attacker could exploit this vulnerability by intercepting network traffic using a crafted certificate. A successful exploit could allow the attacker to masquerade as a trusted host and monitor or change communications between the remote metrics service and the vulnerable client.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-20126

Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Cisco ThousandEyes Endpoint Agent
Vulnerable Versions:
1.200

Timeline

Official Publish: January 8th, 2025
Last Modified: January 13th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)