CVE-2016-4523 — Trihedral VTScada (formerly VTS) Denial-of-Service Vulnerability

The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via unspecified vectors.

01What is this vulnerability?

The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via unspecified vectors.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-04-15. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2016-06-09T10:00:00.000Z
• Last modified: 2025-10-21T23:55:51.558Z
• Added to CISA KEV: 2022-04-15
• BOD 22-01 due: 2022-05-06

09References

• ics-cert.us-cert.gov — https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01
• www.securityfocus.com — http://www.securityfocus.com/bid/91077
• www.zerodayinitiative.com — http://www.zerodayinitiative.com/advisories/ZDI-16-405