CVE-2023-3242

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-26 · updated 2026-06-17
Weakness: CWE-665

Description

Improper initialization implementation in Portmapper used in B&R Industrial Automation Automation Runtime <G4.93 allows unauthenticated network-based attackers to cause permanent denial-of-service conditions.

Affected products

B&R Industrial Automation Automation Runtime: before g4.93 — fixed in g4.93

How to fix

Upgrade to a fixed version: B&R Industrial Automation Automation Runtime g4.93. Check the vendor advisory for mitigations.

References

https://www.br-automation.com/downloads_br_productcatalogue/assets/1689787619746-en-original-1.0.pdf
https://www.br-automation.com/downloads_br_productcatalogue/assets/1689787619746-en-original-1.0.pdf

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