CVE-2016-4523

Name: CVE-2016-4523
Creator: NVD / NIST
Published: 2016-06-09T10:59:04.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10Actively ExploitedEPSS 31.39%

Last modified Jun 17, 2026

CVE-2016-4523 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 31.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

31.39%

98.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 6, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trihedral	Vtscada	>= 8.0.05, < 11.2.02

References

http://www.securityfocus.com/bid/91077Broken Link, Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-405Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01Third Party Advisory, US Government Resource
http://www.securityfocus.com/bid/91077Broken Link, Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-16-405Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01Third Party Advisory, US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4523US Government Resource

Timeline

Published: Jun 9, 2016
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2016-4523?

How severe is CVE-2016-4523?

CVE-2016-4523 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 31.39% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2016-4523?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST