User32.DLL in Microsoft Windows 98SE, and possibly other operating systems, allows local and remote attackers to cause a denial of service (crash) via an icon (.ico) bitmap file with large width and height values.
Conclusion & alert: CVE-2005-1793 is rated Moderate Risk (41.7/100): CVSS Low severity, with high exploitation likelihood (EPSS 7.41%, 94th 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 | 8.92% | 7.41% | -1.51% |
| 2 | 2025-06-30 | 11.64% | 8.92% | -2.72% |
| 3 | 2025-03-30 | — | 11.64% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.6 | 2.0 | LOW |
|
4.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_98se | — | cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:* |