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CVE-2026-15690

3.1 · LOW

A vulnerability was identified in open62541 up to 1.5.5.

Published Jul 14, 2026CWE-404EPSS 0.44%

Overview

CVE-2026-15690 is a low-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A vulnerability was identified in open62541 up to 1.5.5. Affected by this issue is the function responseReadNamespacesArray of the file src/client/ua_client_connect.c of the component Shared Client Library. Such manipulation of the argument Server_NamespaceArray leads to null pointer dereference. The attack can be executed remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit is publicly available and might be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/open62541/open62541/GitHubgithub.com/open62541/open62541/issues/8104Refvuldb.com/cve/CVE-2026-15690Refvuldb.com/submit/855996Refvuldb.com/vuln/378237Refvuldb.com/vuln/378237/cti

How CyberStrike helps

Frequently asked questions

What is CVE-2026-15690?

CVE-2026-15690 is a low-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).

How severe is CVE-2026-15690?

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-15690?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-15690?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-15690 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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