🛡️ CVE-2022-29863 — opcfoundation.netstandard.opc.ua.core

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-789 NVD

8.0

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core

A vulnerability was discovered in the OPC UA .NET Standard Stack that allows a malicious client to cause a server to trigger an out of memory exception with a carefully crafted message.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2022-29863 is classified as CWE-789: Memory Allocation with Excessive Size Value. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

Affected software

CVE-2022-29863 is recorded against 2 packages.

opcfoundation.netstandard.opc.ua.core (fixed in 1.4.368.58)
ua-.net-standard-stack (fixed in 1.4.368.58)

Timeline and source

Published on 17 June 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
files.opcfoundation.org (Web)
github.com (Package)

Details

Severity HIGH

CVSS Score 8.0

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE CWE-789

Public Exploit ✅ No

Source NVD

Published 2022-06-17

Updated 2026-08-20

Modified 2023-11-08

Fix URL https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf

Affected Packages

Software	From version	Fixed in
opcfoundation.netstandard.opc.ua.core	—	1.4.368.58
ua-.net-standard-stack	—	1.4.368.58

References

WEB https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-29863

WEB https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf

PACKAGE https://github.com/OPCFoundation/UA-.NETStandard

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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