Triangle MicroWorks SCADA Data Gateway Event Log Improper Output Neutralization For Logs Arbitrary File Write Vulnerability

published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43184

cvss: 4.4; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Triangle MicroWorks SCADA Data Gateway Event Log Improper Output Neutralization For Logs Arbitrary File Write Vulnerability. This vulnerability allows remote attackers to write arbitrary files on affected installations of Triangle MicroWorks SCADA Data Gateway. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the handling of event logs. The issue results from improper sanitization of log output. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-20535.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-03)

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	4.4	CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Affected products

Triangle MicroWorks SCADA Data Gateway
trianglemicroworks scada_data_gateway

Classification

Weakness

CWE-117 Improper Output Neutralization for Logs

References

trianglemicroworks.com /products/scada-data-gateway/what's-new
vendor-advisory, release-notes
zerodayinitiative.com /advisories/ZDI-23-1029/
third-party-advisory

Sources

CVE List CVE-2023-39461
NVD CVE-2023-39461

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.

Summary