CVE-2022-29863

HIGHNVD 7.57.5—

7.5

OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 70.5%
KEV: Not listed

Published

June 16, 2022

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf
cve@mitrehttps://opcfoundation.org/security/
af854a3a-2127-422b-91ae-364da2661108https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf
af854a3a-2127-422b-91ae-364da2661108https://opcfoundation.org/security/

Affected Packages

(1 across 1 ecosystem)

NuGet(1)

Package	Vulnerable range	Fixed in	Dependents
OPCFoundation.NetStandard.Opc.Ua.Core	0.0.3 ... 1.4.368.53 (41 versions)	1.4.368.58	—

Weakness Classification(1)

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

CWE-770Allocation of Resources Without Limits or Throttling

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 20:17 UTCEG score recompute
2026-05-24 16:51 UTCepss_batch

Frequently asked(5)

What is CVE-2022-29863?

CVE-2022-29863 is a high vulnerability published on June 16, 2022. OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.

When was CVE-2022-29863 disclosed?

CVE-2022-29863 was first published in the National Vulnerability Database on June 16, 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-2022-29863 actively exploited?

CVE-2022-29863 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-29863?

CVE-2022-29863 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-29863?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-29863, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-29863

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