What is CVE-2022-43765?

CVE-2022-43765 is a high-severity vulnerability in Br-Automation Industrial Automation Aprol, classified under CWE-252. CVSS score: 7.5/10. Published 2023-02-08.

How severe is CVE-2022-43765?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Br-Automation Industrial Automation Aprol

CVE-2022-43765

B&R APROL versions < R 4.2-07 doesn’t process correctly specially formatted data packages sent to port 55502/tcp, which may allow a network based attacker to cause an application Denial-of-Service.

Published 2023-02-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Br-Automation Industrial Automation Aprol
B&r Industrial Automation Aprol — versions < R 4.2-07

Weakness classification (CWE)

CWE-252

References

www.br-automation.com/downloads_br_productcatalogue/assets/1674823095245-en-ori… (Vendor Advisory)

Frequently asked questions

What is CVE-2022-43765?: CVE-2022-43765 is a high-severity vulnerability in Br-Automation Industrial Automation Aprol, classified under CWE-252. CVSS score: 7.5/10. Published 2023-02-08.
How severe is CVE-2022-43765?: High severity. CVSS v3 base score is 7.5 out of 10.