CVE-2016-4523

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.312 · 98 %ileEUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

31.2% (98th) EPSS

CVSS 5 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

added 2022-04-15remediate by 2022-05-06

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationVTScadacisa_csaf_ot
If you have any questions or any difficulties with installing one of these updates, please call Trihedral Tech Support: 1-855-887-2232 1-902-835-1575 +44 (0) 1224 258910 for the United Kingdom

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US

affected products (4)

Products and version ranges known to be affected.

Trihedral Engineering VTScada: >=8|<11.2.02all versionscisa_csaf_otUS
Trihedral Engineering VTScada8| → 11.2.02cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
trihedral vtscada8.0.05 → 11.2.02nvdUScpe:2.3:a:trihedral:vtscada:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-16-159-01Trihedral Engineering Limited VTScada Vulnerabilities2016-03-11icsa · cisa_csaf_otUS
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2016-06-09modified 2026-06-17

related (11,872)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-11645US	—OT critical	2.44% (84th)	KEV	2026-06-09
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…
CVE-2026-3055US	critical9.8OT critical	91.5% (100th)	KEV	2026-03-23
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
CVE-2025-5777US	high7.5OT critical	100.0% (100th)	KEV	2025-06-17
Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CVE-2025-5419US	—OT critical	7.82% (95th)	KEV	2025-06-03
Out of bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium secur…
CVE-2025-24991US	—OT critical	2.02% (81st)	KEV	2025-03-11
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

+11867 more

references (9)

External citations — patches, advisories, analysis.

http://www.trihedral.com/help/#Op_Welcome/Wel_UpgradeNotes.htmPatchcnnvd
https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01 cnnvd
http://www.securityfocus.com/bid/91077 enisa_euvd
http://www.zerodayinitiative.com/advisories/ZDI-16-405 enisa_euvd
https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01 enisa_euvd
http://www.securityfocus.com/bid/91077Broken LinkThird Party AdvisoryVDB Entrynvd
http://www.zerodayinitiative.com/advisories/ZDI-16-405Third Party AdvisoryVDB Entrynvd
https://ics-cert.us-cert.gov/advisories/ICSA-16-159-01Third Party AdvisoryUS Government Resourcenvd

scry

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