Medium severity5.3NVD Advisory· Published Jun 13, 2018· Updated Jun 17, 2026
CVE-2018-7559
CVE-2018-7559
Description
An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. A vulnerability in OPC UA applications can allow a remote attacker to determine a Server's private key by sending carefully constructed bad UserIdentityTokens as part of an oracle attack.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
OPCFoundation.NetStandard.Opc.UaNuGet | < 1.3.352.12 | 1.3.352.12 |
Affected products
3- cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*Range: <=1.03.352.10
Patches
Vulnerability mechanics
References
6- github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45nvdPatchThird Party AdvisoryWEB
- github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-gr4c-5rq6-cgh3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-7559ghsaADVISORY
- opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdfnvdThird Party AdvisoryWEB
- www.securityfocus.com/bid/108688nvdWEB
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