Xen 3.x, possibly before 3.1.2, when running on IA64 systems, does not check the RID value for mov_to_rr, which allows a VTi domain to read memory of other domains.
Conclusion & alert: CVE-2007-6207 is rated Low Risk (15.4/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
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 | 2023-03-07 | 1.10% | 0.06% | -1.04% |
| 2 | 2022-02-04 | — | 1.10% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2007-6207 |
ubuntu
|
negligible | CVE-2007-6207 negligible priority: Ubuntu including 1 source packages (xen-3.1), 13 status rows across 13 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 9, ignored 3, needed 1. | https://ubuntu.com/security/CVE-2007-6207 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xensource_inc | xen | <= 3.1.1 | cpe:2.3:a:xensource_inc:xen:*:*:*:*:*:*:*:* |