CVE-2026-61884

Tycon Systems TPDIN-Monitor-WEB2 Authentication Bypass Using an Alternate Path or Channel

Assigner: icscert
Reserved: 13.07.2026 Published: 24.07.2026 Updated: 24.07.2026

The web management interface of Tycon Systems TPDIN-Monitor-WEB2

does not perform server-side validation of credentials during the login process. By submitting empty values for both credential fields, an unauthenticated remote attacker can bypass the authentication check and establish a valid administrative session. This grants full access to device controls including power relay management, device reboot, remote access service configuration, and network settings, which could allow an attacker to disrupt connected infrastructure or cause physical damage to equipment.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Tycon Systems
Product	TPDIN-Monitor-WEB2
Versions	Default: unaffected Version 2.3.9 is affected

Vendor

Tycon Systems

Product

TPDIN-Monitor-WEB2

Versions

Default: unaffected

Version 2.3.9 is affected

Workarounds

Tycon Systems did not respond to CISA's attempts at coordination. Users of Tycon Systems TPDIN-Monitor-WEB2 are encouraged to contact Tycon Systems and keep their systems up to date. https://www.tyconsystems.com/contact

Credits

Abdiwelli Guled reported this vulnerability to CISA. finder

References

Problem Types

CWE-288 CWE