An XXE vulnerability in the OPC UA Java and .NET Legacy Stack can allow remote attackers to trigger a denial of service.
Conclusion & alert: CVE-2018-12585 is rated Moderate Risk (57.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.62%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-17 | 0.11% | 0.62% | +0.51% |
| 2 | 2024-12-17 | 0.20% | 0.11% | -0.08% |
| 3 | 2023-03-07 | — | 0.20% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.2 | 3.0 | HIGH |
|
3.9 | 4.2 | [email protected] |
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| opcfoundation | ua-.net-legacy | <= 1.03.342 | cpe:2.3:a:opcfoundation:ua-.net-legacy:*:*:*:*:*:*:*:* |
| opcfoundation | ua-java | <= 1.3.343 | cpe:2.3:a:opcfoundation:ua-java:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/105538 | Third Party Advisory VDB Entry |
| https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-12585.pdf | Vendor Advisory |