How severe is CVE-2024-5000?

CVE-2024-5000 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-2024-5000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-5000?

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-2024-5000 have an EU (EUVD) identifier?

Yes. CVE-2024-5000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46275.

When was CVE-2024-5000 published?

CVE-2024-5000 was published on 2024-06-04 and last updated on 2026-06-17.

CVE-2024-5000

CVE-2024-5000 is a high-severity vulnerability 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-131.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46275
Weakness: CWE-131
Published: 2024-06-04
Last modified: 2026-06-17

Description

An unauthenticated remote attacker can use a malicious OPC UA client to send a crafted request to affected CODESYS products which can cause a DoS due to incorrect calculation of buffer size.

Frequently asked questions

What is CVE-2024-5000?: An unauthenticated remote attacker can use a malicious OPC UA client to send a crafted request to affected CODESYS products which can cause a DoS due to incorrect calculation of buffer size.
How severe is CVE-2024-5000?: CVE-2024-5000 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-2024-5000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-5000?: 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-2024-5000 have an EU (EUVD) identifier?: Yes. CVE-2024-5000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46275.
When was CVE-2024-5000 published?: CVE-2024-5000 was published on 2024-06-04 and last updated on 2026-06-17.

References

Other CWE-131 (Incorrect Calculation of Buffer Size) vulnerabilities

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CVE-2026-20911 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and…
CVE-2025-1861 — Critical (CVSS 9.8): In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when…
CVE-2023-5941 — Critical (CVSS 9.8): In versions of FreeBSD 12.4-RELEASE prior to 12.4-RELEASE-p7 and FreeBSD 13.2-RELEASE prior to 13.2-RELEASE-p5 the…

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