CVE-2021-22280 - Vulnerability Details - OpenCVE

Description

Improper DLL loading algorithms in B&R Automation Studio versions >=4.0 and <4.12 may allow an authenticated local attacker to execute code in the context of the product.

Published: 2024-05-14

Score: 7.2 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

B&R Industrial Automation

Automation Studio

unaffected

Version	Status	Constraints
`0`	affected	< 4.12

Configuration 1 [-]

cpe:2.3:a:br-automation:automation_studio:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-9426	Improper DLL loading algorithms in B&R Automation Studio versions >=4.0 and <4.12 may allow an authenticated local attacker to execute code in the context of the product.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00076.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.br-automation.com/fileadmin/2021-10_DLL_Hijacking_Vulnerability_in_Automation_Studio-7dd34511.pdf

History

Fri, 19 Dec 2025 15:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Br-automation Br-automation automation Studio
Weaknesses		CWE-427
CPEs		cpe:2.3:a:br-automation:automation_studio::::::::
Vendors & Products		Br-automation Br-automation automation Studio

Subscriptions

Br-automation Automation Studio

MITRE

Status: PUBLISHED

Assigner: ABB

Published: 2024-05-14T19:36:51.930Z

Updated: 2024-08-03T18:37:18.537Z

Reserved: 2021-01-05T17:31:49.080Z

Link: CVE-2021-22280

Vulnrichment

Updated: 2024-08-03T18:37:18.537Z

NVD

Status : Analyzed

Published: 2024-05-14T20:15:11.263

Modified: 2025-12-19T14:48:27.197

Link: CVE-2021-22280

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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