Vulnerability in Opcfoundation Ua-.net-Legacy
CVE-2018-7559
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (66.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Secur… (Third Party Advisory)
- github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827… (Patch, Third Party Advisory)
- github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5… (Patch, Third Party Advisory)
- www.securityfocus.com/bid/108688 (vdb-entry)
Frequently asked questions
- What is CVE-2018-7559?
- CVE-2018-7559 is a medium-severity vulnerability in Opcfoundation Ua-.net-Legacy, classified under CWE-320. CVSS score: 5.3/10. Published 2018-06-13.
- How severe is CVE-2018-7559?
- Medium severity. CVSS v3 base score is 5.3 out of 10.