What is CVE-2019-3567?

CVE-2019-3567 is a high-severity vulnerability in Facebook Osquery, classified under Improper Access Control. CVSS score: 8.1/10. Published 2019-06-03.

How severe is CVE-2019-3567?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Facebook Osquery

CVE-2019-3567

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.

Published 2019-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.3th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Facebook Osquery — versions 3.4.0, unspecified
Linuxfoundation Osquery

Weakness classification (CWE)

References

www.facebook.com/security/advisories/cve-2019-3567 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-3567?: CVE-2019-3567 is a high-severity vulnerability in Facebook Osquery, classified under Improper Access Control. CVSS score: 8.1/10. Published 2019-06-03.
How severe is CVE-2019-3567?: High severity. CVSS v3 base score is 8.1 out of 10.