Vulnerability in Cisco Thousandeyes Enterprise Agent

CVE-2026-20199

A vulnerability in the SSL certificate handling of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to execute commands on the underlying operating system as the root user. This vulnerability is due to…

EPSS: 0.001 (18.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20199?
CVE-2026-20199 is a medium-severity vulnerability in Cisco Thousandeyes Enterprise Agent, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-05-20.
How severe is CVE-2026-20199?
Medium severity. CVSS v3 base score is 4.7 out of 10.