CVE-2026-61884 Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function
Unconfigured Tycon Systems TPDIN-Monitor-WEB2 devices allow unauthenticated attackers to control power relays and network settings, risking infrastructure disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-61884?
CVE-2026-61884 is a critical missing authorization vulnerability in Tycon Systems TPDIN-Monitor-WEB2, published on 24 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-61884?
How do I fix CVE-2026-61884?
No fix has been published for CVE-2026-61884 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-61884 being exploited?
There is no known exploitation of CVE-2026-61884 in the wild and no public exploit code.
Sources
Also known as GHSA-jmfc-m78f-w5vj.