How severe is CVE-2016-4523?

CVE-2016-4523 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-4523 being actively exploited?

Yes. CVE-2016-4523 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-04-15, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2016-4523?

CVE-2016-4523 affects Trihedral Vtscada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4523?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2016-4523 have an EU (EUVD) identifier?

Yes. CVE-2016-4523 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-5510. It is also flagged as exploited in the EUVD (since 2022-04-15).

When was CVE-2016-4523 published?

CVE-2016-4523 was published on 2016-06-09 and last updated on 2026-06-17.

CVE-2016-4523

CVE-2016-4523 is a high-severity vulnerability in Trihedral Vtscada with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-04-15). The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 31% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-04-15)
EU (EUVD) id: EUVD-2016-5510
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-04-15)
Weakness: CWE-125
Affected product: Trihedral Vtscada
Published: 2016-06-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2016-4523?: 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.
How severe is CVE-2016-4523?: CVE-2016-4523 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-4523 being actively exploited?: Yes. CVE-2016-4523 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-04-15, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2016-4523?: CVE-2016-4523 affects Trihedral Vtscada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4523?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2016-4523 have an EU (EUVD) identifier?: Yes. CVE-2016-4523 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-5510. It is also flagged as exploited in the EUVD (since 2022-04-15).
When was CVE-2016-4523 published?: CVE-2016-4523 was published on 2016-06-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trihedral:vtscada:*:*:*:*:*:*:*:*

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