CVE-2023-38120: Adtran SR400AC Firmware

High severity, CVSS 8.8. EPSS: 3.8% chance of exploitation in the next 30 days.

Adtran SR400ac ping Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adtran SR400ac routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the ping command, which is available over JSON-RPC. A crafted host parameter can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-20525.

Affected products

• Adtran SR400AC Firmware: version 10.8.5.1 only; version 10.8.8.1 only

Published 2024-05-03. Last modified 2026-06-17.