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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.

PUBLISHED Reserved 2026-06-11 | Published 2026-07-10 | Updated 2026-07-10 | Assigner GitHub_M




HIGH: 7.0CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-122: Heap-based Buffer Overflow

Product status

< 5.23.1
affected

References

github.com/...squery/security/advisories/GHSA-4r78-6hg6-33gg

github.com/osquery/osquery/pull/8934

github.com/...ommit/3d457c412eb0c986b0c37d8903edae8bc9f9e246

github.com/osquery/osquery/releases/tag/5.23.1

cve.org (CVE-2026-54000)

nvd.nist.gov (CVE-2026-54000)

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