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
Published Jun 13, 2018
5.3
MEDIUMCVSS 3.0
EPSS 1.17%
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.
Affected products
No data.
- ≤ 1.03.342
- ≤ 1.03.352.10
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:M/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.17% (0.01167) | 66.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.58% (0.01581) | 72.25th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00296) | 50.83th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.17% (0.00170) | 55.35th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00169) | 53.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00136) | 47.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.31% (0.01306) | 31.19th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.31% (0.01306) | 0.00th | v1 |
References (6)
- http://www.securityfocus.com/bid/108688 vdb-entryx_refsource_BID
- https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/advisories/GHSA-gr4c-5rq6-cgh3 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-7559
- https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/108688 | vdb-entryx_refsource_BID | |
| https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/advisories/GHSA-gr4c-5rq6-cgh3 | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-7559 | ||
| https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.