Waterfall WF-500 TX Host, OS Command Injection, CVE-2025-41265 (High) -DC-Jun2026-82

CVE-2025-41265 describes a critical OS command injection vulnerability discovered by Nozomi Networks Labs in the Administration WebUI component of the Waterfall WF-500 TX Host. The flaw is rooted in improper neutralization of special elements used in operating system commands (CWE-78) and is present in software version 7.9.1.0 R2502171040. At its core, the vulnerability allows a remote, authenticated attacker to execute arbitrary operating system commands directly on the underlying host machine, bypassing intended input validation mechanisms.
The attack surface is the administrative web interface, which processes user-submitted commands or parameters that are later passed unsanitized to an OS-level function. By injecting command separators, such as semicolons (;), ampersands (&), pipes (|), or backticks (), an attacker can force the device to execute additional commands with the privileges of the web application—typically root. For example, if the web UI has a function for pinging a remote IP address, an attacker could supply `192.168.1.1; cat /etc/passwd` instead of a legitimate IP, thereby injecting a `cat` command to read system files. Because the web application does not properly validate or sanitize the input, the malicious payload is passed directly to the OS shell, where it is executed.
The vulnerability requires authentication, meaning an attacker must first have valid credentials for the Administration WebUI. However, in many industrial environments, default credentials may still be in use or weak passwords could be brute-forced. Once authenticated, the attacker can craft HTTP requests containing the malicious command injection payload. The web application then passes the tainted input to a function likesystem(),exec(), or similar, without proper escaping or whitelisting. This enables execution of arbitrary commands with the highest privileges, effectively giving the attacker full control over the WF-500 TX Host.
The impact of a successful exploit is severe: an attacker can install malware, exfiltrate sensitive industrial process data, modify system configurations, or pivot to other parts of the OT network. The WF-500 TX is a unidirectional gateway used to securely transfer data from industrial control systems (ICS) to business networks. Compromising it can break the security boundary, allowing attacks to flow from the corporate network into the OT environment. The vulnerability was assigned a CVSS base score of 7.2 (High), reflecting the high degree of technical impact despite the requirement for authentication. Nozomi Networks Labs reported the issue, and NIST published the CVE on May 29, 2026, with the last modification on June 1, 2026. As of the disclosure date, no vendor patch is yet available; users are advised to apply network-based mitigations and restrict access to the Administration WebUI.
<h2 style="color: blue;">DailyCVE Form:</h2>
Platform: Waterfall WF-500 TX
Version: 7.9.1.0 R2502171040
Vulnerability : OS Command Injection
Severity: 7.2 HIGH
date: 05/29/2026
<h2 style="color: blue;">Prediction: 2026-07-28</h2>
<h2 style="color: blue;">(end of form)</h2>
<h2 style="color: blue;">Analytics under heading What Undercode Say:</h2>

Parse web server logs for suspicious command injection patterns
grep -E "(;|\||\&|\</code>|\$(|cat|ls|id|whoami)" /var/log/waterfall/admin_ui.log
Monitor process tree for unexpected command execution
ps auxf | grep -E "(ping|nslookup|wget|curl)" | grep -v "waterfall"
Use auditd to detect execution of shell commands from web user
auditctl -a always,exit -F uid=www-data -S execve

Authenticate and exploit the ping injection point
curl -X POST http://<target_ip>:8080/admin/ping \
-H "Cookie: session=<valid_session>" \
-d "target_ip=127.0.0.1; id > /tmp/out.txt"