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Fencer Vulns
medium 5.3

CVE-2023-39458 json

Triangle MicroWorks SCADA Data Gateway Use of Hard-coded Credentials Authentication Bypass Vulnerability

published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43181

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

Triangle MicroWorks SCADA Data Gateway Use of Hard-coded Credentials Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Triangle MicroWorks SCADA Data Gateway. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of certificates. The service uses a hard-coded default SSL certificate. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-20509.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Triangle MicroWorks SCADA Data Gateway
  • trianglemicroworks scada_data_gateway

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.