CVE-2021-20141

HIGH

Gryphon Tower Firmware < 04.0004.12 - Unauthenticated OS Command Injection via Controller Server Operation 32

Title source: llm
STIX 2.1

Description

An unauthenticated command injection vulnerability exists in the parameters of operation 32 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 0.0371
EPSS Percentile 88.4%
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