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Description

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 insufficient validation of user-supplied input. An authenticated attacker could exploit this vulnerability by uploading a crafted certificate to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials.

PUBLISHED Reserved 2025-10-08 | Published 2026-05-20 | Updated 2026-05-20 | Assigner cisco




MEDIUM: 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Problem types

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Product status

Any version
affected

References

sec.cloudapps.cisco.com/...ry/cisco-sa-tevacert-rce-RMJVEym5 (cisco-sa-tevacert-rce-RMJVEym5)

cve.org (CVE-2026-20199)

nvd.nist.gov (CVE-2026-20199)

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