Resource exhaustion in Br-Automation Automation Runtime

CVE-2023-3242

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.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-3242: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-3242?
CVE-2023-3242 is a high-severity vulnerability in Br-Automation Automation Runtime, classified under Improper Initialization. CVSS score: 8.6/10. Published 2023-07-26.
How severe is CVE-2023-3242?
High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2023-3242 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.