CVE-2025-41425 Overview
CVE-2025-41425 is a cross-site scripting (XSS) vulnerability affecting the DuraComm SPM-500 DP-10iN-100-MU industrial power monitoring device. The flaw resides in the device's web interface and is classified under [CWE-79], improper neutralization of input during web page generation. An attacker with low privileges can inject malicious script content that executes in the browsers of users interacting with the affected interface. Successful exploitation can prevent legitimate users from accessing the web management interface and may allow attackers to manipulate session content. The vulnerability was disclosed through CISA ICS Advisory ICSA-25-203-01 and impacts deployments in industrial and critical infrastructure environments.
Critical Impact
Authenticated attackers can inject malicious scripts that deny legitimate users access to the device's web interface and compromise administrative session integrity.
Affected Products
- DuraComm SPM-500 DP-10iN-100-MU power monitoring device
- DuraComm web management interface
- Industrial control systems deployments using the SPM-500 platform
Discovery Timeline
- 2025-07-22 - CVE-2025-41425 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-41425
Vulnerability Analysis
The DuraComm SPM-500 DP-10iN-100-MU web interface fails to properly neutralize user-supplied input before reflecting or storing it within rendered HTML output. This results in a cross-site scripting condition that allows attackers to inject arbitrary JavaScript into pages served by the device. When a legitimate operator loads the affected page, the injected script executes within the operator's browser context. The flaw maps to [CWE-79], a long-standing class of input handling defects in web applications.
Because the device serves an operational role in industrial environments, script injection can disrupt monitoring workflows. The advisory notes that exploitation can prevent legitimate users from accessing the web interface entirely. The EPSS probability stands at 0.337% at the 25th percentile, reflecting limited current exploitation telemetry.
Root Cause
The root cause is missing or insufficient output encoding on parameters processed by the embedded web server. Input fields accepted by the interface are not validated against a strict allow-list and are rendered back to clients without HTML entity encoding. This permits attacker-controlled markup and scripts to break out of the intended data context and execute as code.
Attack Vector
The attack is network-reachable and requires low privileges on the target device. An attacker authenticates to the web interface, submits a crafted payload to a vulnerable input field, and waits for an administrator or operator to access the affected page. No user interaction is required beyond normal browsing of the management interface. The injected payload executes with the privileges of the victim's session, enabling session manipulation, defacement, or denial of access to the interface.
No public proof-of-concept code is available for this issue. Refer to the CISA ICS Advisory ICSA-25-203-01 for technical context.
Detection Methods for CVE-2025-41425
Indicators of Compromise
- HTTP requests to the SPM-500 web interface containing <script>, onerror=, onload=, or encoded JavaScript payloads in form fields or query parameters.
- Unexpected administrative session terminations or repeated failed logins after operator browsing of the device interface.
- Outbound connections from operator workstations to unknown hosts immediately after interacting with the device UI.
Detection Strategies
- Inspect web server logs on the SPM-500 for parameter values containing HTML or JavaScript syntax characters such as <, >, and ".
- Deploy a network intrusion detection signature that flags XSS payload patterns in HTTP traffic destined for the device's management port.
- Correlate authentication events with subsequent anomalous client-side activity on operator browsers.
Monitoring Recommendations
- Monitor all administrative access to the SPM-500 web interface and alert on logins from unexpected source IP addresses.
- Capture full HTTP request bodies on perimeter sensors covering the operational technology network segment.
- Enable browser-side reporting via Content Security Policy violation endpoints where supported by the operator workstation.
How to Mitigate CVE-2025-41425
Immediate Actions Required
- Restrict network access to the SPM-500 web interface to a dedicated management VLAN and trusted operator workstations.
- Rotate credentials for all accounts on affected devices to invalidate any sessions that may have been compromised through XSS.
- Contact DuraComm via the official contact page to obtain firmware guidance and patch availability.
Patch Information
No public firmware patch identifier has been published in the NVD entry at the time of writing. Asset owners should engage DuraComm directly and track updates to CISA ICS Advisory ICSA-25-203-01 for remediation details.
Workarounds
- Place the device behind a reverse proxy or web application firewall that filters HTML and JavaScript metacharacters in request parameters.
- Disable remote access to the management interface and require operators to use a jump host within the OT environment.
- Use a dedicated, hardened browser profile for SPM-500 administration to limit the blast radius of any injected script.
# Example firewall rule restricting SPM-500 management access to a jump host
iptables -A INPUT -p tcp --dport 80 -s 10.10.50.25 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -s 10.10.50.25 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
