HOMEVULNERABILITIESCVE-2022-43762
CRITICAL

CVE-2022-43762

CWE-119Published: February 8, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

 Lack of verification in B&R APROL

Tbase server versions < R 4.2-07 may lead to memory leaks when receiving messages

NVD Source

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.

Recommended Action

Upgrade B&R APROL to version R 4.2-07 or later to resolve the memory leak issue.

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-2022-43762 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

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

br-automation1 product(s)
industrial automation aprol
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2022-43762
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 8, 2023

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
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.