Buffer overflow in Microsoft Internet Information Services (IIS) 7.5, when FastCGI is enabled, allows remote attackers to execute arbitrary code via crafted headers in a request, aka "Request Header Buffer Overflow Vulnerability."
Conclusion & alert: CVE-2010-2730 is rated Moderate Risk (64.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.08%, 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 | 2026-03-04 | 13.10% | 8.08% | -5.02% |
| 2 | 2026-03-01 | 8.08% | 13.10% | +5.02% |
| 3 | 2026-02-04 | — | 8.08% | — |
Full EPSS history (40 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
: Per: http://www.microsoft.com/technet/security/Bulletin/MS10-065.mspx 'FastCGI is not enabled by default in IIS.'
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | internet_information_services | 7.5 | cpe:2.3:a:microsoft:internet_information_services:7.5:*:*:*:*:*:*:* |