How severe is CVE-2024-36981?

CVE-2024-36981 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-36981 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-36981?

CVE-2024-36981 affects Openplcproject Openplc V3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-36981?

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

Does CVE-2024-36981 have an EU (EUVD) identifier?

Yes. CVE-2024-36981 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36331.

When was CVE-2024-36981 published?

CVE-2024-36981 was published on 2024-09-18 and last updated on 2026-06-17.

CVE-2024-36981

CVE-2024-36981 is a high-severity vulnerability in Openplcproject Openplc V3 Firmware with a CVSS 3.x base score of 7.5. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-36331
Weakness: CWE-125
Affected product: Openplcproject Openplc V3 Firmware
Published: 2024-09-18
Last modified: 2026-06-17

Description

An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted network request can lead to denial of service. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.This is the final instance of the incorrect comparison.

Frequently asked questions

What is CVE-2024-36981?: An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted network request can lead to denial of service. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.This is the final instance of the incorrect comparison.
How severe is CVE-2024-36981?: CVE-2024-36981 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-36981 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-36981?: CVE-2024-36981 affects Openplcproject Openplc V3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-36981?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-36981 have an EU (EUVD) identifier?: Yes. CVE-2024-36981 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36331.
When was CVE-2024-36981 published?: CVE-2024-36981 was published on 2024-09-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-04-04:*:*:*:*:*:*:*

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