PT-2026-57207 · Squery · Osquery

Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-54000

Mitre

CVSS v4.0

7.0

High

Base vector

AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-54000

Affected Products

Osquery

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-54000 · Security Note
• https://github.com/osquery/osquery/commit/3d457c412eb0c986b0c37d8903edae8bc9f9e246 · Note
• https://github.com/osquery/osquery/security/advisories/GHSA-4r78-6hg6-33gg · Note
• https://github.com/osquery/osquery/releases/tag/5.23.1 · Note
• https://github.com/osquery/osquery/pull/8934 · Note
• https://twitter.com/UpwindMDR/status/2075625700980092945 · Twitter Post