How severe is CVE-2024-45526?

CVE-2024-45526 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2024-45526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-45526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-45526 have an EU (EUVD) identifier?

Yes. CVE-2024-45526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2986.

When was CVE-2024-45526 published?

CVE-2024-45526 was published on 2024-10-22 and last updated on 2026-06-17.

CVE-2024-45526

CVE-2024-45526 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-2986
Weakness: CWE-770
Published: 2024-10-22
Last modified: 2026-06-17

Description

An issue was discovered in OPC Foundation OPCFoundation/UA-.NETStandard through 1.5.374.78. A remote attacker can send requests with invalid credentials and cause the server performance to degrade gradually.

Frequently asked questions

What is CVE-2024-45526?: An issue was discovered in OPC Foundation OPCFoundation/UA-.NETStandard through 1.5.374.78. A remote attacker can send requests with invalid credentials and cause the server performance to degrade gradually.
How severe is CVE-2024-45526?: CVE-2024-45526 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2024-45526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-45526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-45526 have an EU (EUVD) identifier?: Yes. CVE-2024-45526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2986.
When was CVE-2024-45526 published?: CVE-2024-45526 was published on 2024-10-22 and last updated on 2026-06-17.

References

https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-45526.pdf

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