Vulnerability Description
osquery is a SQL powered operating system instrumentation, monitoring, and analytics framework. Prior to 5.23.1, on Windows, a local unprivileged attacker can cause a heap buffer out-of-bounds write if there is a query of the processes table targeting a maliciously crafted process, due to unchecked PEB string lengths in process command-line and current-directory reads. If exploited successfully, this could allow a potential local privilege escalation from standard user to SYSTEM. This issue is fixed in version 5.23.1.
Related Weaknesses (CWE)
References
- https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e2
- https://github.com/osquery/osquery/pull/8934
- https://github.com/osquery/osquery/releases/tag/5.23.1
- https://github.com/osquery/osquery/security/advisories/GHSA-4r78-6hg6-33gg
FAQ
What is CVE-2026-54000?
CVE-2026-54000 is a documented vulnerability. osquery is a SQL powered operating system instrumentation, monitoring, and analytics framework. Prior to 5.23.1, on Windows, a local unprivileged attacker can cause a heap buffer out-of-bounds write i...
How severe is CVE-2026-54000?
CVSS scoring is not yet available for CVE-2026-54000. Check NVD for updates.
Is there a patch for CVE-2026-54000?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.