CVE-2022-43762
CWE-119Published: February 8, 2023· Updated: Jun 17, 2026
Official Description
Lack of verification in B&R APROL
Tbase server versions < R 4.2-07 may lead to memory leaks when receiving messages
Risk Analysis
B&R APROL Tbase server lacks proper verification when receiving messages, leading to memory leaks that can cause system instability. This critical vulnerability has a 9.8 CVSS score and is remotely exploitable.
There is no known public exploit, and it is not in the CISA KEV. It is remotely exploitable with low attack complexity.
Upgrade B&R APROL to version R 4.2-07 or later to resolve the memory leak issue.
Technical Analysis
CVE-2022-43762 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-119)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-43762 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts