What’s Vulnerable › Vulnerabilities

CVE-2026-61884: Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-24 · updated 2026-10-24
• Weakness: CWE-306

Description

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.

Affected products

• Tycon Systems TPDIN-Monitor-WEB2: before 2.4.5 — fixed in 2.4.5

How to fix

Upgrade to a fixed version: Tycon Systems TPDIN-Monitor-WEB2 2.4.5. Check the vendor advisory for mitigations.

References

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

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