CVE-2020-24681: Automation Studio and PVI Multiple incorrect permission assignments for services

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-02 · updated 2026-06-17
Weakness: CWE-732

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.

Affected products

B&R Industrial Automation Automation Studio: from 4.0 before 4.7.7.74; from 4.8 before 4.8.6.30; from 4.9 before 4.9.4.92 — fixed in 4.7.7.74, 4.8.6.30, 4.9.4.92

How to fix

Upgrade to a fixed version: B&R Industrial Automation Automation Studio 4.7.7.74, 4.8.6.30, 4.9.4.92. Check the vendor advisory for mitigations.

References

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