Multiple unspecified vulnerabilities in Intel system software for Trusted Execution Technology (TXT) allow attackers to bypass intended loader integrity protections, as demonstrated by exploitation of tboot. NOTE: as of 20090107, the only disclosure is a vague pre-advisory with no actionable information. However, because it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.
Conclusion & alert: CVE-2009-0066 is rated Moderate Risk (60.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.19%). Core evidence: EPSS rose +1.90% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule 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 | 0.30% | 2.19% | +1.90% |
| 2 | 2025-10-16 | 0.73% | 0.30% | -0.43% |
| 3 | 2025-05-29 | — | 0.73% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.6 | 2.0 | HIGH |
|
4.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| intel | trusted_execution_technology | _nil_ | cpe:2.3:a:intel:trusted_execution_technology:_nil_:*:*:*:*:*:*:* |