Is CVE-2022-43764 actively exploited?

No active exploitation of CVE-2022-43764 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-43764 be exploited remotely?

Yes. CVE-2022-43764 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-43764?

CVE-2022-43764 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-43764

CWE-121Published: February 8, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Insufficient validation of input parameters when

changing configuration on Tbase server in B&R APROL versions < R 4.2-07 could result in buffer

overflow. This may lead to Denial-of-Service conditions or execution of

arbitrary code.

NVD Source

Risk Analysis

B&R APROL Tbase server is vulnerable to a buffer overflow due to insufficient input validation, which can lead to denial-of-service or remote code execution. The 9.8 CVSS score underscores the high urgency of this flaw for industrial environments.

No public exploit is known, and it is not in the CISA KEV. The flaw is remotely exploitable with low attack complexity.

Recommended Action

Upgrade B&R APROL to version R 4.2-07 or later.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-43764 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.