CVE-2022-43762 Memory leak when receiving messages in APROL Tbase server

Q: Is CVE-2022-43762 being exploited?

There is no known exploitation of CVE-2022-43762 in the wild and no public exploit code.

Q: How do I fix CVE-2022-43762?

No fix has been published for CVE-2022-43762 yet. Limit exposure of the affected software until one is available.

High 7.5 Published 8 Feb 2023 Updated 25 Mar 2025

Attackers can cause memory leaks in the APROL Tbase server by sending messages, potentially leading to denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-43762?

CVE-2022-43762 is a high-severity denial of service vulnerability in B&R APROL, published on 8 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Lack of verification in B&R APROL Tbase server versions < R 4.2-07 may lead to memory leaks when receiving messages

Weakness: CWE-119

Which versions are affected by CVE-2022-43762?

It affects 1 product.

Products include Br-Automation Industrial Automation Aprol.

How do I fix CVE-2022-43762?

No fix has been published for CVE-2022-43762 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-43762 being exploited?

There is no known exploitation of CVE-2022-43762 in the wild and no public exploit code.

Sources

Also known as GHSA-56vg-qgwv-6h64.