SEPTEMBER 19, 2026
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Case File

CVE-2026-54000

HIGH · CVSS 7 EPSS 0.11% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-10 · Last synced 2026-08-09

CyberRota Analysis

AI-Generated

A vulnerability exists in osquery on Windows prior to version 5.23.1, where a local unprivileged attacker can exploit unchecked PEB string lengths during queries of the processes table, leading to a heap buffer out-of-bounds write. Successful exploitation may enable local privilege escalation from a standard user to SYSTEM. Organizations using osquery on Windows should prioritize upgrading to version 5.23.1 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-54000
Severity
HIGH
CVSS
7
EPSS
0.11%
Windows

Original 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 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.