Detections
Analytics

B&R Automation Runtime Allocation of Resources Without Limits or Throttling (CVE-2023-3242)

medium Tenable OT Security Plugin ID 503275

Synopsis

The remote OT asset is affected by a vulnerability.

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.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

http://www.nessus.org/u?e0be26b1

Plugin Details

Severity: Medium

ID: 503275

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 6/13/2025

Updated: 6/13/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:br-automation:automation_runtime

Required KB Items: Tenable.ot/BRAutomation

Exploit Ease: No known exploits are available

Patch Publication Date: 7/26/2023

Vulnerability Publication Date: 7/26/2023

Reference Information

CVE: CVE-2023-3242

CWE: 665, 770