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CVE-2023-28831

7.5 · HIGH

The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.

Published Sep 12, 2023CWE-190EPSS 1.13%

Overview

CVE-2023-28831 is a high-severity vulnerability. It was published on September 12, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.

This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.

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

Refcert-portal.siemens.com/productcert/html/ssa-118850.htmlRefcert-portal.siemens.com/productcert/html/ssa-711309.htmlRefcert-portal.siemens.com/productcert/pdf/ssa-118850.pdfRefcert-portal.siemens.com/productcert/pdf/ssa-711309.pdfRefcert-portal.siemens.com/productcert/html/ssa-118850.htmlRefcert-portal.siemens.com/productcert/html/ssa-711309.htmlRefcert-portal.siemens.com/productcert/pdf/ssa-118850.pdfRefcert-portal.siemens.com/productcert/pdf/ssa-711309.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2023-28831?

CVE-2023-28831 is a high-severity vulnerability. It was published on September 12, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-28831?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-28831?

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-2023-28831?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-28831 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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