CVE-2023-31048 json
Exposure of Sensitive Information in OPC UA .NET Standard Reference Server
published 2023-05-05 3 y ago modified 2026-06-17 4 mo ago also GHSA-4cvp-hr63-822j , EUVD-2023-1466
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
The OPC UA .NET Standard Reference Server before 1.4.371.86. places sensitive information into an error message that may be seen remotely.
Patch / fix
- nuget OPCFoundation.NetStandard.Opc.Ua.Core 1.4.371.86
- nuget OPCFoundation.NetStandard.Opc.Ua.Server 1.4.371.86
- opcfoundation ua-.netstandard 1.4.371.86
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | OPCFoundation.NetStandard.Opc.Ua.Core | <1.4.371.86 |
1.4.371.86 |
| nuget | OPCFoundation.NetStandard.Opc.Ua.Server | <1.4.371.86 |
1.4.371.86 |
Classification
References
-
files.opcfoundation.org
/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-31048.pdf
web, vendor-advisory
-
github.com
/OPCFoundation/UA-.NETStandard/releases
web, release-notes
-
github.com
/OPCFoundation/UA-.NETStandard/releases/tag/1.4.371.86
web, release-notes
-
github.com
/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-4cvp-hr63-822j
web
-
nvd.nist.gov
/vuln/detail/CVE-2023-31048
advisory
-
github.com
/OPCFoundation/UA-.NETStandard
package
Sources
- CVE List CVE-2023-31048
- GitHub Advisory GHSA-4cvp-hr63-822j
- NVD CVE-2023-31048
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