Tycon Systems TPDIN-Monitor-WEB3

September 3, 2026·Source: CISA

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TL;DR

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to perform a man-in-the-middle (MitM) attack, cause a factory reset, wipe credentials, or retrieve sensitive information. The following versions of Tycon Systems TPDIN-Monitor-WEB3 are affected: TPDIN-Monitor-WEB3 <=2.2.9 (CVE-2026-77847, CVE-2026-82712, CVE-2026-82684) CVSS Vendor Equipment Vulnerabilities

v3 8.8 Tycon Systems Tycon Systems TPDIN-Monitor-WEB3 Use of Hard-coded Credentials, Cross-Site Request Forgery (CSRF), Missing Authorization

Background Critical Infrastructure Sectors: Critical Manufacturing, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-77847 Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Use of Hard-coded Credential vulnerability. This could allow an attacker to intercept sensitive information or credentials. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB3 Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB3: <=2.2.9 Product Status: known_affected Remediations Vendor fix Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2. Mitigation Units already running v2.4.2, for subsequent updates (signed container): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw Mitigation All units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex Mitigation A unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs. Mitigation For more information, contact Tycon Systems: https://www.tyconsystems.com/contact Relevant CWE: CWE-798 U

What Happened

Tycon Systems TPDIN-Monitor-WEB3, reported by CISA.

v3 8.8 Tycon Systems Tycon Systems TPDIN-Monitor-WEB3 Use of Hard-coded Credentials, Cross-Site Request Forgery (CSRF), Missing Authorization

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

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Mitigation Steps

Patch immediately, Apply vendor patches or updates as soon as they are available.
Review configurations, Check firewall rules, access controls, and security headers.
Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
Update security policies, Ensure incident response plans cover this type of threat.
Run a security scan, Use automated tools to verify your exposure.

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