How severe is CVE-2022-1261?

CVE-2022-1261 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2022-1261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-1261?

CVE-2022-1261 affects Honeywell Matrikon Opc Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-1261?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-1261 published?

CVE-2022-1261 was published on 2022-05-26 and last updated on 2026-06-17.

CVE-2022-1261

CVE-2022-1261 is a medium-severity vulnerability in Honeywell Matrikon Opc Server with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
CVSS v2: 9.0
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Honeywell Matrikon Opc Server
Published: 2022-05-26
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-1261?: 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.
How severe is CVE-2022-1261?: CVE-2022-1261 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2022-1261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-1261?: CVE-2022-1261 affects Honeywell Matrikon Opc Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-1261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-1261 published?: CVE-2022-1261 was published on 2022-05-26 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:honeywell:matrikon_opc_server:*:*:*:*:*:*:*:*

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