Microsoft Internet Security and Acceleration (ISA) Server 2004 allows remote attackers to bypass file extension filters via a request with a trailing "#" character. NOTE: as of 20060715, this could not be reproduced by third parties.
Conclusion & alert: CVE-2006-3652 is rated Moderate Risk (64.8/100): CVSS High severity, with high exploitation likelihood (EPSS 18.91%, 97th 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 | 18.02% | 18.91% | +0.90% |
| 2 | 2026-04-14 | 19.99% | 18.02% | -1.98% |
| 3 | 2025-08-10 | — | 19.99% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | isa_server | 2004 | cpe:2.3:a:microsoft:isa_server:2004:*:*:*:*:*:*:* |