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CVE-2022-1261

Matrikon OPC Server Improper Access Control

HIGH
8.8
CVSS Score
Published: May 26, 2022 at 04:35 PM UTC
Updated: June 17, 2026 at 04:22 AM UTC
2 products affected across 2 vendorsMatrikon Opc ServerMatrikon OPC Server

Using Matrikon OPC Server by Matrikon, a subsidiary of Honeywell?

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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-02

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-284NVD-CWE-noinfo

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