A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). The AdminService is available without authentication on the Application Server. An attacker can gain remote code execution by sending specifically crafted objects to one of its functions. Please note that an attacker needs to have access to the Application Highway in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
Conclusion & alert: CVE-2019-18283 is rated High Risk (67.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.43%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2026-06-15 | 9.23% | 5.43% | -3.80% |
| 2 | 2026-04-28 | 11.46% | 9.23% | -2.23% |
| 3 | 2025-11-21 | — | 11.46% | — |
Full EPSS history (20 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| siemens | sppa-t3000_application_server | < r8.2 | cpe:2.3:a:siemens:sppa-t3000_application_server:*:*:*:*:*:*:*:* |
| siemens | sppa-t3000_application_server | r8.2 | cpe:2.3:a:siemens:sppa-t3000_application_server:r8.2:-:*:*:*:*:*:* |
| siemens | sppa-t3000_application_server | r8.2 | cpe:2.3:a:siemens:sppa-t3000_application_server:r8.2:sp1:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/155665/Siemens-Security-Advisory-SPPA-T3000-Code-Execution.html | Third Party Advisory VDB Entry |
| https://cert-portal.siemens.com/productcert/pdf/ssa-451445.pdf | Mitigation Vendor Advisory |