How severe is CVE-2022-43604?

CVE-2022-43604 has a CVSS 3.x base score of 10.0, 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-2022-43604 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43604?

CVE-2022-43604 affects Opener Project Opener. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-43604?

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-2022-43604 published?

CVE-2022-43604 was published on 2023-03-16 and last updated on 2026-06-17.

CVE-2022-43604

CVE-2022-43604 is a critical-severity vulnerability in Opener Project Opener with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Opener Project Opener
Published: 2023-03-16
Last modified: 2026-06-17

Description

An out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer development commit 58ee13c. A specially crafted EtherNet/IP request can lead to an out-of-bounds write, potentially causing the server to crash or allow for remote code execution. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.

Frequently asked questions

What is CVE-2022-43604?: An out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer development commit 58ee13c. A specially crafted EtherNet/IP request can lead to an out-of-bounds write, potentially causing the server to crash or allow for remote code execution. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.
How severe is CVE-2022-43604?: CVE-2022-43604 has a CVSS 3.x base score of 10.0, 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-2022-43604 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43604?: CVE-2022-43604 affects Opener Project Opener. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-43604?: 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-2022-43604 published?: CVE-2022-43604 was published on 2023-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opener_project:opener:*:*:*:*:*:*:*:*

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