CVE-2022-43765

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 60.2%
KEV: Not listed

Published

February 8, 2023

Last Modified

November 21, 2024

References (2)

cybersecurity@chhttps://www.br-automation.com/downloads_br_productcatalogue/assets/1674823095245-en-original-1.0.pdf
af854a3a-2127-422b-91ae-364da2661108https://www.br-automation.com/downloads_br_productcatalogue/assets/1674823095245-en-original-1.0.pdf

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-252Unchecked Return Value

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
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2026-05-25 07:13 UTCEG score recompute

Frequently asked(5)

What is CVE-2022-43765?

CVE-2022-43765 is a high vulnerability published on February 8, 2023. 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.

When was CVE-2022-43765 disclosed?

CVE-2022-43765 was first published in the National Vulnerability Database on February 8, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-43765 actively exploited?

CVE-2022-43765 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-43765?

CVE-2022-43765 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-43765?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-43765, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-43765

📅 Published

🔄 Last Modified

🔗 References (2)