FrontPage Server Extensions (FPSE) in IIS 4.0 and 5.0 allows remote attackers to cause a denial of service via a malformed form, aka the "Malformed Web Form Submission" vulnerability.
Conclusion & alert: CVE-2001-0096 is rated Moderate Risk (59.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 55.87%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +44.80% over the last day, indicating growing attacker interest. 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 | 2025-12-28 | 11.07% | 55.87% | +44.80% |
| 2 | 2025-12-27 | 55.87% | 11.07% | -44.80% |
| 3 | 2025-10-28 | — | 55.87% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | internet_information_server | 4.0 | cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:* |
| microsoft | internet_information_services | 5.0 | cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:* |