What’s Vulnerable › Vulnerabilities

CVE-2022-1261: Matrikon OPC Server Improper Access Control

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-26 · updated 2026-06-17
• Weakness: CWE-284

Description

Matrikon, a subsidary of Honeywell Matrikon OPC Server (all versions) is vulnerable to a condition where a low privileged user allowed to connect to the OPC server to use the functions of the IPersisFile to execute operating system processes with system-level privileges.

Affected products

• Matrikon, a subsidiary of Honeywell Matrikon OPC Server: all versions

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-02
• https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-02

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