CVE-2026-54000CWE-122

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

High · published July 10, 2026

CVSS v4.0
7.0
EPSS
0%
Percentile
4.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.0 · HIGH
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
EPSS
0.00153 · 4.1th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-07-10T14:51Z
EPSS history
Timeline
  • 10 JUL 14:51Z
    osquery: Heap buffer overflow in `getProcessCurrentDirectory()` via `processes` table (Windows)
    cvelistv5