TI-2026-16534 Aliases CVE-2026-20350 GHSA-gvrw-xc72-49qh

Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability

LOW 24CWE-78Published 2026-09-16 · Updated 2026-09-21

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

A vulnerability in the web-based management interface of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to inject arbitrary operating system commands. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by saving configuration details that contain malicious values. A successful exploit could allow the attacker to execute arbitrary operating system commands with root privileges. To exploit this vulnerability, the attacker must have valid administrative credentials.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00482 41st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco ThousandEyes Enterprise Agent	Agent 5.0; Agent 4.4.4; Agent 4.4.3; Agent 4.4.2; Agent 4.2; Agent 4.1; Agent 4.0; Agent 5.1; Agent 5.1.2; Agent 5.1.3; Agent 5.2.0	—	No fix listed	CNA

Cisco ThousandEyes Enterprise Agent VendorCisco Affected Agent 5.0; Agent 4.4.4; Agent 4.4.3; Agent 4.4.2; Agent 4.2; Agent 4.1; Agent 4.0; Agent 5.1; Agent 5.1.2; Agent 5.1.3; Agent 5.2.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-20350
2026-10-03 Alias added: GHSA-gvrw-xc72-49qh

References

Other 1

cisco-sa-teva-os-command-W4GAO6jp

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TI-2026-53490 Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2026-53489 Cisco Secure Email Gateway SQL Injection Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2026-16388 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences