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 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.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tevacert-rce-RMJVEym5	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:thousandeyes_virtual_appliance:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-20 17:16

Updated : 2026-07-23 12:10

NVD link : CVE-2026-20199

Mitre link : CVE-2026-20199

CVE.ORG link : CVE-2026-20199

JSON object : View

Products Affected

cisco

thousandeyes_virtual_appliance

CWE

CWE-74

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

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