What’s Vulnerable › Vulnerabilities

CVE-2022-29866

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-16 · updated 2026-06-17
• Weakness: CWE-400

Description

OPC UA .NET Standard Stack 1.04.368 allows a remote attacker to exhaust the memory resources of a server via a crafted request that triggers Uncontrolled Resource Consumption.

Affected products

• Opcfoundation Ua .Net Standard Stack: before 1.4.368.58 — fixed in 1.4.368.58

How to fix

Upgrade to a fixed version: Opcfoundation Ua .Net Standard Stack 1.4.368.58. Check the vendor advisory for mitigations.

References

• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29866.pdf
• https://opcfoundation.org/security/
• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29866.pdf
• https://opcfoundation.org/security/

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