How severe is CVE-2022-43764?

CVE-2022-43764 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-43764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43764?

CVE-2022-43764 affects Br-automation Industrial Automation Aprol. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-43764?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-43764 published?

CVE-2022-43764 was published on 2023-02-08 and last updated on 2026-06-17.

CVE-2022-43764

CVE-2022-43764 is a critical-severity vulnerability in Br-automation Industrial Automation Aprol with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Br-automation Industrial Automation Aprol
Published: 2023-02-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-43764?: 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.
How severe is CVE-2022-43764?: CVE-2022-43764 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-43764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43764?: CVE-2022-43764 affects Br-automation Industrial Automation Aprol. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-43764?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-43764 published?: CVE-2022-43764 was published on 2023-02-08 and last updated on 2026-06-17.

References

https://www.br-automation.com/downloads_br_productcatalogue/assets/1674823095245-en-original-1.0.pdf

Affected products (1)

cpe:2.3:a:br-automation:industrial_automation_aprol:*:*:*:*:*:*:*:*

More vulnerabilities in Br-automation Industrial Automation Aprol

CVE-2019-19876 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. An EnMon PHP script was vulnerable to SQL…
CVE-2019-19875 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. Arbitrary commands could be injected…
CVE-2019-19874 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. Some web scripts in the web interface…
CVE-2019-19872 — Critical (CVSS 9.8): An issue was discovered in B&R Industrial Automation APROL before R4.2 V7.08. The AprolLoader could be used to inject…
CVE-2022-43761 — Critical (CVSS 9.4): Missing authentication when creating and managing the B&R APROL database in versions < R 4.2-07 allows reading and…
CVE-2024-5623 — High (CVSS 7.8): An untrusted search path vulnerability in B&R APROL <= R 4.4-00P3 may be used by an authenticated local attacker to get…

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