Unspecified vulnerability in mso.dll in Microsoft Office 2000, XP, and 2003, and Microsoft PowerPoint 2000, XP, and 2003, allows remote user-assisted attackers to execute arbitrary code via a malformed record in a (1) .DOC, (2) .PPT, or (3) .XLS file that triggers memory corruption, related to an "array boundary condition" (possibly an array index overflow), a different vulnerability than CVE-2006-3434, CVE-2006-3650, and CVE-2006-3868.
Conclusion & alert: CVE-2006-3864 is rated High Risk (71.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 45.71%, 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 | 2025-05-29 | 45.31% | 45.71% | +0.40% |
| 2 | 2025-03-30 | 62.30% | 45.31% | -16.99% |
| 3 | 2025-03-29 | — | 62.30% | — |
Full EPSS history (17 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 | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-3864: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-3864 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | office | 2000 | cpe:2.3:a:microsoft:office:2000:sp3:*:*:*:*:*:* |
| microsoft | office | 2003 | cpe:2.3:a:microsoft:office:2003:sp1:*:*:*:*:*:* |
| microsoft | office | 2003 | cpe:2.3:a:microsoft:office:2003:sp2:*:*:*:*:*:* |
| microsoft | office | 2004 | cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:* |
| microsoft | office | v.x | cpe:2.3:a:microsoft:office:v.x:*:mac:*:*:*:*:* |
| microsoft | office | xp | cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:* |
| microsoft | project | 2000 | cpe:2.3:a:microsoft:project:2000:sr1:*:*:*:*:*:* |
| microsoft | project | 2002 | cpe:2.3:a:microsoft:project:2002:sp1:*:*:*:*:*:* |
| microsoft | visio | 2002 | cpe:2.3:a:microsoft:visio:2002:sp2:*:*:*:*:*:* |