DFSR.exe in Windows Meeting Space in Microsoft Windows Vista remains available for remote connections on TCP port 5722 for 2 minutes after Windows Meeting Space is closed, which allows remote attackers to have an unknown impact by connecting to this port during the time window.
Conclusion & alert: CVE-2007-1534 is rated High Risk (72.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 39.94%, 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 | 2026-04-13 | 39.13% | 39.94% | +0.82% |
| 2 | 2025-11-06 | 38.74% | 39.13% | +0.39% |
| 3 | 2025-03-30 | — | 38.74% | — |
Full EPSS history (20 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_vista | — | cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:* |