CVE-2026-82684

Tycon Systems TPDIN-Monitor-WEB3 Missing Authorization

Published Sep 4, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Description
Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Missing Authorization vulnerability. This could allow an attacker to extract system credentials, configurations, or flash contents.

Remediation

Vendor Solution

Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2. 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 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 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. For more information, contact Tycon Systems:  https://www.tyconsystems.com/contact

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Tycon Systems
Tycon Systems tpdin-monitor-web3
Vendors & Products Tycon Systems
Tycon Systems tpdin-monitor-web3
Type Values Removed Values Added
Description Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Missing Authorization vulnerability. This could allow an attacker to extract system credentials, configurations, or flash contents.
Title Tycon Systems TPDIN-Monitor-WEB3 Missing Authorization
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Sep 8, 2026, 3:53 PM
Reserved
Sep 1, 2026, 5:01 PM
Status
Awaiting Analysis
Published
Sep 4, 2026, 10:17 PM
Modified
Sep 8, 2026, 4:18 PM