---
id: CVE-2026-54000
title: >-
  osquery is a SQL powered operating system instrumentation, monitoring, and
  analytics framework
summary: >-
  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 t…
severity: none
cwe:
  - CWE-122
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54000'
references:
  - url: >-
      https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246
    label: security-advisories@github.com
  - url: 'https://github.com/osquery/osquery/pull/8934'
    label: security-advisories@github.com
  - url: 'https://github.com/osquery/osquery/releases/tag/5.23.1'
    label: security-advisories@github.com
  - url: 'https://github.com/osquery/osquery/security/advisories/GHSA-4r78-6hg6-33gg'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00153
epssPercentile: 0.03719
ingestedAt: '2026-07-11T20:15:26.033Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.