CVE-2023-32787

HIGHNVD 7.57.5—

7.5

The OPC UA Legacy Java Stack before 6f176f2 enables an attacker to block OPC UA server applications via uncontrolled resource consumption so that they can no longer serve client applications.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 69.5%
KEV: Not listed

Published

May 15, 2023

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-32787.pdf
cve@mitrehttps://github.com/OPCFoundation/UA-Java-Legacy
cve@mitrehttps://github.com/OPCFoundation/UA-Java-Legacy/commit/6f176f2b445a27c157f1a32f225accc9ce8873c0
af854a3a-2127-422b-91ae-364da2661108https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-32787.pdf
af854a3a-2127-422b-91ae-364da2661108https://github.com/OPCFoundation/UA-Java-Legacy
af854a3a-2127-422b-91ae-364da2661108https://github.com/OPCFoundation/UA-Java-Legacy/commit/6f176f2b445a27c157f1a32f225accc9ce8873c0

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2023-32787?

CVE-2023-32787 is a high vulnerability published on May 15, 2023. The OPC UA Legacy Java Stack before 6f176f2 enables an attacker to block OPC UA server applications via uncontrolled resource consumption so that they can no longer serve client applications.

When was CVE-2023-32787 disclosed?

CVE-2023-32787 was first published in the National Vulnerability Database on May 15, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-32787 actively exploited?

CVE-2023-32787 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-32787?

CVE-2023-32787 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-32787?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-32787, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-32787

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-32787?

🔗 Related CVEs(same CWE)

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Published

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References (6)

Frequently asked(5)

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