Trihedral VTScada (formerly VTS) Denial-of-Service Vulnerability

Added to KEV
2022-04-15
Federal due date
2022-05-06
Vendor
Trihedral
Product
VTScada (formerly VTS)
EPSS
98.5th percentile (score 0.654, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2016-4523

CISA short description

The WAP interface in Trihedral VTScada (formerly VTS) allows remote attackers to cause a denial-of-service (DoS).

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.