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CVE-2016-4523· NVD / CVE Program· CNA icscert

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 (

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.

HighCVSS 7.5 · v3.1KEVWeaponized No fix recorded
Published
Jun 9, 2016
Updated
Jun 16, 2026
EPSS
31.2% · 98th percentile
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Action score

69

This week

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CVSS
30 / 40 · 7.5 / 10
CISA KEV
30 / 30 · Listed
EPSS
9 / 30 · 31.2%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Apr 15, 2022. That signals real attacks, not theory.

Remediation deadline for government agencies: May 6, 2022.

Affected systems

VendorProduct
trihedralvtscada

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • trihedral vtscada8.0.05 and later · before 11.2.02

Same product

trihedral: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-4532Directory traversal vulnerability in the WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote att
    44Plan
  • CVE-2016-4510The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to bypass authentication and r
    42Plan
  • CVE-2017-14031An Improper Access Control issue was discovered in Trihedral VTScada 11.3.03 and prior.
    31Monitor
  • CVE-2017-14029An Uncontrolled Search Path Element issue was discovered in Trihedral VTScada 11.3.03 and prior.
    31Monitor
  • CVE-2017-6045An Information Exposure issue was discovered in Trihedral VTScada Versions prior to 11.2.26.
    31Monitor
  • CVE-2017-6043A Resource Consumption issue was discovered in Trihedral VTScada Versions prior to 11.2.26.
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEV+2136 d
  3. TodaySep 30, 2026+3765 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records