Directory traversal vulnerability in NTWebServer in InduSoft Web Studio 6.1 and 7.x before 7.0+Patch 1 allows remote attackers to execute arbitrary code via an invalid request.
Conclusion & alert: CVE-2011-1900 is rated High Risk (74.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 49.26%, 98th 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 | 2025-03-30 | 48.94% | 49.26% | +0.32% |
| 2 | 2025-03-29 | 49.26% | 48.94% | -0.32% |
| 3 | 2025-03-17 | — | 49.26% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| indusoft | web_studio | 6.1 | cpe:2.3:a:indusoft:web_studio:6.1:*:*:*:*:*:*:* |
| indusoft | web_studio | 7.0 | cpe:2.3:a:indusoft:web_studio:7.0:*:*:*:*:*:*:* |