CVE-2021-20139
HIGHGryphon Tower Firmware < 04.0004.12 - Unauthenticated OS Command Injection via Controller Server Operation 3 Parameters
Title source: llmDescription
An unauthenticated command injection vulnerability exists in the parameters of operation 3 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.
References (1)
Core 1
Core References
Exploit, Vendor Advisory x_refsource_misc
https://www.tenable.com/security/research/tra-2021-51
Scores
CVSS v3
8.8
EPSS
0.0398
EPSS Percentile
89.2%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-78
Status
published
Products (1)
gryphonconnect/gryphon_tower_firmware
< 04.0004.12
Published
Dec 09, 2021
Tracked Since
Feb 18, 2026