A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core…
Priority MEDIUM 40CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-770.
Summary
A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00557 46th percentileScored 2026-11-07
Fix Fixed OPCFoundation.NetStandard.Opc.Ua.Core (NuGet): 1.5.374.54
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) | before 1.5.374.54 | 1.5.374.54 | Patch available | GHSA-4q2p-hwmr-qcxc |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Vendor— Affected before 1.5.374.54 Fixed in 1.5.374.54 Patch available GHSA-4q2p-hwmr-qcxc
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:* | — | — | OPC Foundation |
- cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:* Versions — — ·OPC Foundation
Remediation
- Fix · GHSA-4q2p-hwmr-qcxc OPCFoundation.NetStandard.Opc.Ua.Core (NuGet) Fixed in 1.5.374.54 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-33862
- 2026-10-03 Alias added: GHSA-4q2p-hwmr-qcxc
References
Other 4
- https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-33862.pdf
- https://github.com/OPCFoundation/UA-.NETStandard/commit/52d4492ccc928f128e7a38857fdf58d94e1e652b
- https://github.com/OPCFoundation/UA-.NETStandard
- https://github.com/OPCFoundation/UA-.NETStandard/releases/tag/1.5.374.54
Sources
- CVE-2024-33862 · CVE Program
- CVE-2024-33862 · NVD
- FIRST EPSS
- GHSA-4q2p-hwmr-qcxc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences