CVE-2020-24681

Automation Studio and PVI Multiple incorrect permission assignments for services

Published Feb 2, 2024 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
Incorrect Permission Assignment for Critical Resource vulnerability in B&R Industrial Automation Automation Studio allows Privilege Escalation.This issue affects Automation Studio: from 4.6.0 through 4.6.X, from 4.7.0 before 4.7.7 SP, from 4.8.0 before 4.8.6 SP, from 4.9.0 before 4.9.4 SP.

Remediation

Vendor Workaround

B&R has identified the following specific workarounds and mitigations. Users of B&R Automation Studio and PVI may manually reconfigure permission settings on these services to allow modification only for privileged users. Additionally, it is recommended to limit access to the workstation running B&R Automation Studio and PVI to authorized users.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-17395 Incorrect Permission Assignment for Critical Resource vulnerability in B&R Industrial Automation Automation Studio allows Privilege Escalation.This issue affects Automation Studio: from 4.6.0 through 4.6.X, from 4.7.0 before 4.7.7 SP, from 4.8.0 before 4.8.6 SP, from 4.9.0 before 4.9.4 SP.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ABB
Published
Updated
May 9, 2025, 5:52 PM
Reserved
Aug 26, 2020, 12:00 AM
Status
Modified
Published
Feb 2, 2024, 7:15 AM
Modified
Jun 17, 2026, 3:05 AM