CVE-2026-61884CWE-306

CVE-2026-61884

Critical · published July 25, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
45.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00556 · 45.6th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-07-25T02:16Z
References (2)
EPSS history
Timeline
  • 24 JUL 21:40Z
    Tycon Systems TPDIN-Monitor-WEB2 Authentication Bypass Using an Alternate Path or Channel
    cvelistv5