CVE-2026-61884

CRITICAL 9.8

Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

The Tycon Systems TPDIN-Monitor-WEB2 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.

CWE	CWE-306
Vendor	tycon systems
Product	tpdin-monitor-web2
Published	Jul 24, 2026
Last Updated	Sep 4, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Tycon Systems / TPDIN-Monitor-WEB2

0 < 2.4.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-01 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-202-01.json

Credits

Abdiwelli Guled reported this vulnerability to CISA.