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Vulnerability record · CVE-2026-54001 · published 10 July 2026

CVE-2026-54001: Heap-based buffer overflow 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 if there is a query of the authenticode table targeting a maliciously crafted binary, due to publisher information parsing in getOriginalProgramName. 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.

7.0 CVSS 4.0 High EPSS 0.15% · top 96.2% CWE-122 · Heap-based buffer overflow Deferred
7.0CVSS 4.0 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
14 Jul 2026Last modified by NVD

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 authenticode table targeting a maliciously crafted binary, due to publisher information parsing in getOriginalProgramName. 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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/osquery/osquery/commit/59a808cda96d5a089cf6ec147efe152459284d54
https://github.com/osquery/osquery/pull/8923
https://github.com/osquery/osquery/releases/tag/5.23.1
https://github.com/osquery/osquery/security/advisories/GHSA-hr28-jvpx-68cx

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Source: NIST National Vulnerability Database (record CVE-2026-54001), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.