CVE-2022-30551

HIGHNVD 7.57.5—

7.5

OPC UA Legacy Java Stack 2022-04-01 allows a remote attacker to cause a server to stop processing messages by sending crafted messages that exhaust available resources.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 78.4%
KEV: Not listed

Published

May 20, 2022

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-30551.pdf
cve@mitrehttps://github.com/OPCFoundation/UA-Java-Legacy
cve@mitrehttps://opcfoundation.org
af854a3a-2127-422b-91ae-364da2661108https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-30551.pdf
af854a3a-2127-422b-91ae-364da2661108https://github.com/OPCFoundation/UA-Java-Legacy
af854a3a-2127-422b-91ae-364da2661108https://opcfoundation.org

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-2022-30551?

CVE-2022-30551 is a high vulnerability published on May 20, 2022. OPC UA Legacy Java Stack 2022-04-01 allows a remote attacker to cause a server to stop processing messages by sending crafted messages that exhaust available resources.

When was CVE-2022-30551 disclosed?

CVE-2022-30551 was first published in the National Vulnerability Database on May 20, 2022, 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-2022-30551 actively exploited?

CVE-2022-30551 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-30551?

CVE-2022-30551 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-30551?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-30551, 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-2022-30551

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-30551?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

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