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CVE-2023-38120

HighPublished

Adtran SR400ac ping Command Injection Remote Code Execution Vulnerability

Published: May 3, 2024
Updated: Sep 18, 2024
Assigning CNA: zdi
Evidence observed: Aug 5, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

3.8%

Low · next 30 days

Percentile: 89.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2023-38120PoC
Adtran SR400ac ping Command Injection Remote Code Execution Vulnerability

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