CVE-2022-29863
Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core
CVE-2022-29863 is a high vulnerability (CVSS 7.5) in Opcfoundation Ua .net Standard Stack, published June 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 74th percentile. Fixed in OPCFoundation.NetStandard.Opc.Ua.Core 1.4.368.58.
- Severity
- 7.5 HighCVSS 3.1, NVD
- Exploit chance
- 1.48%EPSS, 74th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.4.368.58OPCFoundation.NetStandard.Opc.Ua.Core +1 more
Description
OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
OPCFoundation.NetStandard.Opc.Ua.CoreNuGet | through 1.4.368.53 | 1.4.368.58 |
OPCFoundation.NetStandard.Opc.Ua.CoreNuGet | before 1.4.368.58, plus listed versions 0.0.30.0.60.0.70.0.80.0.9 Show 36 moreShow less0.1.00.1.10.1.20.1.30.1.50.1.60.1.70.1.80.1.90.2.00.2.10.2.20.2.30.2.41.4.363.104-preview1.4.363.1071.4.364.401.4.365-gfc341ee8c51.4.365.1-preview1.4.365.101.4.365.21.4.365.231.4.365.481.4.366.31-preview1.4.366.381.4.367.1001.4.367.391.4.367.411.4.367.421.4.367.64-preview1.4.367.751.4.367.951.4.368.27-preview1.4.368.331.4.368.52-preview1.4.368.53 | 1.4.368.58 |
What each source reports
NVD Score used
OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
- Record
CVE-2022-29863- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE ListNo score
OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
- Record
CVE-2022-29863- Updated
- 2026-11-02
EUVDEUVD-2022-6145No score
OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
- Record
EUVD-2022-6145- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r7pq-3x6p-7jcm
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.
- Record
GHSA-r7pq-3x6p-7jcm- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-789
- Updated
- 2026-11-02
OSVGHSA-r7pq-3x6p-7jcm
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.
- Record
GHSA-r7pq-3x6p-7jcm- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-789
- Updated
- 2026-11-02
OSVNo score
OPC UA .NET Standard Stack 1.04.368 allows remote attacker to cause a crash via a crafted message that triggers excessive memory allocation.
- Record
CVE-2022-29863- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
opcfoundation.org/security
files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf
github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm
nvd.nist.gov/vuln/detail/CVE-2022-29863