CVE-2025-20126

Cisco ThousandEyes Endpoint Agent Certificate Validation 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.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Cisco Cisco ThousandEyes Endpoint Agent
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-20126?
CVE-2025-20126 has been scored as a medium severity vulnerability.
How to fix CVE-2025-20126?
To fix CVE-2025-20126, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-20126 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-20126 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-20126?
CVE-2025-20126 affects Cisco Cisco ThousandEyes Endpoint Agent.
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