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Vulnerabilities CVE-2026-54000

CVE-2026-54000

High
Open
TLP:CLEAR

osquery: Heap buffer overflow in `getProcessCurrentDirectory()` via `processes` table (Windows)

NVD CVE.org
Critical Infrastructure

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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.

Details

CVSS Score
7.0
EPSS Score
0.11%

1.4th percentile

CVSS Vector
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
Confidence
90%
Published
Jul 10, 2026
Last Modified
Jul 14, 2026
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