High 7.0Published Jul 10, 2026

CVE-2026-54001osquery: Heap buffer overflow via `authenticode` table (Windows)

Updated under an hour ago (Oct 28, 2026, 1:50 AM ET)

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Every CVE for osquery

Exploited in the last 30 days

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: 7.0 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

osquery osquery osquery:osquery (from the name)	before 5.23.1	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.