High severity8.8NVD Advisory· Published Dec 9, 2021· Updated Jun 17, 2026
CVE-2021-20140
CVE-2021-20140
Description
An unauthenticated command injection vulnerability exists in the parameters of operation 10 in the controller_server service on Gryphon Tower routers. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the controller_server service on port 9999.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
1- www.tenable.com/security/research/tra-2021-51nvdExploitVendor Advisory
News mentions
0No linked articles in our index yet.