CVE-2026-20206
Description
A vulnerability in the BrowserBot component of Cisco ThousandEyes Enterprise Agent could have allowed an authenticated, remote attacker to execute arbitrary commands on Agents on behalf of the BrowserBot synthetics orchestration process. Cisco has addressed this vulnerability in the Cisco ThousandEyes Enterprise Agent, and no customer action is needed.
This vulnerability was due to insufficient input validation of command arguments that are supplied by the user. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by authenticating to the ThousandEyes SaaS and submitting crafted input into the affected parameter. A successful exploit could have allowed the attacker to execute arbitrary commands within the BrowserBot container as the node user. To exploit this vulnerability, the attacker must have valid user credentials for the ThousandEyes SaaS and the ability to manage transaction tests.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Cisco ThousandEyes Enterprise Agent BrowserBot component had a command injection vulnerability (CVSS 6.3) allowing authenticated remote code execution.
Vulnerability
CVE-2026-20206 is a command injection vulnerability in the BrowserBot component of Cisco ThousandEyes Enterprise Agent. The root cause is insufficient input validation of command arguments supplied by the user, which could allow an authenticated, remote attacker to execute arbitrary commands on Agents on behalf of the BrowserBot synthetics orchestration process [1].
Exploitation
To exploit this vulnerability, an attacker must have valid user credentials for the ThousandEyes SaaS and the ability to manage transaction tests. The attacker authenticates to the ThousandEyes SaaS and submits crafted input into the affected parameter, leading to command execution within the BrowserBot container as the node user [1].
Impact
A successful exploit allows the attacker to execute arbitrary commands in the BrowserBot container, potentially impacting the confidentiality, integrity, and availability of the affected Agent. The CVSS v3 base score is 6.3 (Medium), indicating a moderate risk [1].
Mitigation
Cisco has addressed this vulnerability in the Cisco ThousandEyes Enterprise Agent, and no customer action is needed. There are no workarounds that address this vulnerability [1].
AI Insight generated on May 20, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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