CVE-2019-19100: Privilege escalation via B&R Automation Studio upgrade service

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-29 · updated 2026-06-17
Weakness: CWE-264

Description

A privilege escalation vulnerability in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.4SP, <. 4.6.3SP, < 4.7.2 and < 4.8.1 allow authenticated users to delete arbitrary files via an exposed interface.

Affected products

B&R Industrial Automation Automation Studio: from 4.0 through 4.0.29.87; from 4.1 through 4.1.17.113; from 4.2 through 4.2.14.119; from 4.3 before 4.3.11; from 4.4 before 4.4.9; from 4.5 before 4.5.4 — fixed in 4.3.11, 4.4.9, 4.5.4, 4.6.3, 4.7.2

How to fix

Upgrade to a fixed version: B&R Industrial Automation Automation Studio 4.3.11, 4.4.9, 4.5.4, 4.6.3. Check the vendor advisory for mitigations.

References

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