How severe is CVE-2024-42512?

CVE-2024-42512 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2024-42512 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42512?

CVE-2024-42512 affects Opcfoundation Ua .net Standard Stack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42512?

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-2024-42512 have an EU (EUVD) identifier?

Yes. CVE-2024-42512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5035.

When was CVE-2024-42512 published?

CVE-2024-42512 was published on 2025-02-10 and last updated on 2026-06-17.

CVE-2024-42512

CVE-2024-42512 is a high-severity vulnerability in Opcfoundation Ua .net Standard Stack with a CVSS 3.x base score of 8.6. 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-208.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-5035
Weakness: CWE-208
Affected product: Opcfoundation Ua .net Standard Stack
Published: 2025-02-10
Last modified: 2026-06-17

Description

Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.

Frequently asked questions

What is CVE-2024-42512?: Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.
How severe is CVE-2024-42512?: CVE-2024-42512 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2024-42512 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42512?: CVE-2024-42512 affects Opcfoundation Ua .net Standard Stack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42512?: 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-2024-42512 have an EU (EUVD) identifier?: Yes. CVE-2024-42512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5035.
When was CVE-2024-42512 published?: CVE-2024-42512 was published on 2025-02-10 and last updated on 2026-06-17.

References

https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-42512.pdf

Affected products (1)

cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*

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