Tycon Systems TPDIN-Monitor-WEB2 (Update A)

View CSAF Summary Successful exploitation of these vulnerabilities could result in an attacker accessing sensitive credentials, disrupting connected infrastructure, or manipulating physical equipment, which could present a physical safety risk.

The following versions of Tycon Systems TPDIN-Monitor-WEB2 (Update A) are affected: TPDIN-Monitor-WEB2 <2.4.5 (CVE-2026-61884, CVE-2026-55985) CVSS Vendor Equipment Vulnerabilities v3 9.8 Tycon Systems Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function, Cleartext Storage of Sensitive Information Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-61884 The device ships without HTTP credentials configured, intended for an installer to set them on first use.

On firmware 2.4.4 and earlier, a unit left in this unconfigured state serves the web management interface without requiring any login. An attacker with network access to such a unit can reach full device controls, including power relay management, device reboot, remote access service configuration, and network settings, which could allow disruption of connected infrastructure or physical damage to equipment.

View CVE Details Affected Products Vendor fixTycon Systems has released firmware 2.4.5, which resolves this vulnerability by requiring an administrator username and password to be set before the web interface is served. Further inquiries can be directed to [email protected].

MitigationTycon Systems recommends setting an administrative username and strong password on the Network Configuration page and confirming in a private browser window that a login is required, for units still running firmware 2.4.4 or earlier. Repeat this after any factory reset. MitigationTycon Systems recommends not exposing the web interface to the Internet, as it is HTTP only.

The unit should be kept on a private network, behind a firewall or VPN.

Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-55985 The device's web management interface stores and displays system credentials in cleartext on a certain configuration page accessible to authenticated users.

Any party with access to the administrative dashboard can immediately read these credentials, which may be used to compromise other systems on the local network. View CVE Details Affected Products Vendor fixTycon Systems has released firmware 2.4.5, which resolves this vulnerability by removing cleartext credentials from the web interface response. Further inquiries can be directed to [email protected].

MitigationTycon Systems recommends changing any factory-default SNMP community strings and the Telnet password if they were left at shipped values. Leave Telnet disabled unless required. MitigationTycon Systems recommends using a dedicated mail account for device alerts, rather than an account also used for other sensitive purposes, to limit exposure if credentials are compromised.

Relevant CWE: CWE-312 Cleartext Storage of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 4.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N 4.0 5.3 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Acknowledgments Abdiwelli Guled reported these vulnerabilities to CISA.

Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.

Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks.

When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

Revision History Initial Release Date: 2026-07-21 Date Revision Summary 2026-07-21 1 Initial Publication 2026-09-03 2 Updated affected version range and vulnerability details based on vendor input. Legal Notice and Terms of Use