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CVE-2021-22284: Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.

CVE-2021-22284 · published 4 years ago

Summary

Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.

What to do

Update abb opc_server_for_ac_800m to version 6.0.0-4 or later.

Affected software

Vendor	Product	Affected versions
abb	opc_server_for_ac_800m	>= 5.1.0-0, < 6.0.0-4 `cpe:2.3:a:abb:opc_server_for_ac_800m::::::::`

Original advisory text

Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.

References

https://search.abb.com/library/Download.aspx?DocumentID=7PAA000908&LanguageCode=... Vendor Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

8.8 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-732Incorrect Permission Assignment for Critical Resource

Timeline

Published4 Feb 2022

Updated31 Oct 2026

First seen29 Sep 2026

Sources

CVE-2021-22284 · NVD

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