In some configurations an attacker can inject a new executable path into the extensions.load file for osquery and hard link a parent folder of a malicious binary to a folder with known 'safe' permissions. Under those circumstances osquery will load said malicious executable with SYSTEM permissions. The solution is to migrate installations to the 'Program Files' directory on Windows which restricts unprivileged write access. This issue affects osquery prior to v3.4.0.
Conclusion & alert: CVE-2019-3567 is rated Moderate Risk (59.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.66%). Core evidence: EPSS rose +1.23% 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 | 0.43% | 1.66% | +1.23% |
| 2 | 2025-03-30 | 0.76% | 0.43% | -0.33% |
| 3 | 2025-03-29 | — | 0.76% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.1 | 3.0 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| linuxfoundation | osquery | < 3.4.0 | cpe:2.3:a:linuxfoundation:osquery:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.facebook.com/security/advisories/cve-2019-3567 | Third Party Advisory |