Integer overflow in cdd.dll in the Canonical Display Driver (CDD) in Microsoft Windows Server 2008 R2 and Windows 7 on 64-bit platforms, when the Windows Aero theme is installed, allows context-dependent attackers to cause a denial of service (reboot) or possibly execute arbitrary code via a crafted image file that triggers incorrect data parsing after user-mode data is copied to kernel mode, as demonstrated using "Browse with Irfanview" and certain actions on a folder containing a large number of thumbnail images in Resample mode, possibly related to the ATI graphics driver or win32k.sys, aka "Canonical Display Driver Integer Overflow Vulnerability."
Conclusion & alert: CVE-2009-3678 is rated High Risk (65.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.61%, 96th 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 | 49.16% | 12.61% | -36.54% |
| 2 | 2026-03-26 | 52.13% | 49.16% | -2.97% |
| 3 | 2025-03-30 | — | 52.13% | — |
Full EPSS history (19 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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_7 | — | cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:* |
| microsoft | windows_server_2008 | r2 | cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:* |