Heap Buffer Out-of-Bounds Vulnerability in Osquery by Facebook
CVE-2026-54001

7HIGH

Key Information:

Vendor

Osquery

Status
Osquery
Vendor
CVE Published:
10 July 2026

What is CVE-2026-54001?

An identified vulnerability in Osquery allows a local, unprivileged attacker to execute a heap buffer out-of-bounds write on Windows systems. This occurs through a crafted query targeting the authenticode table, exploiting weaknesses in publisher information parsing within the getOriginalProgramName function. If an attacker successfully manipulates this vulnerability, they can escalate their privileges from a standard user to the SYSTEM level. The issue has been remediated in version 5.23.1.

Affected Version(s)

osquery < 5.23.1

References

https://github.com/osquery/osquery/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/osquery/osquery/pull/8923
x_refsource_MISC
https://github.com/osquery/osquery/commit/59a808cda96d5a0...
x_refsource_MISC

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.