CVE-2026-9787

Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest NetVault Backup. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the processing of NVBULogDaemon JSON-RPC messages. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-27625.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.quest.com/technical-documents/netvault/14.0.2/release-notes#TOPIC-2338529	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-26-376/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:quest:netvault_backup:*:*:*:*:*:*:*:*

History

25 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de inyección de comandos y ejecución remota de código en Quest NetVault Backup NVBULogDaemon. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de Quest NetVault Backup. Aunque se requiere autenticación para explotar esta vulnerabilidad, el mecanismo de autenticación existente puede ser eludido. La falla específica existe en el procesamiento de los mensajes JSON-RPC de NVBULogDaemon. El problema se debe a la falta de validación adecuada de una cadena proporcionada por el usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de SYSTEM. Fue ZDI-CAN-27625.

Information

Published : 2026-06-25 00:17

Updated : 2026-10-25 23:10

NVD link : CVE-2026-9787

Mitre link : CVE-2026-9787

CVE.ORG link : CVE-2026-9787

JSON object : View

Products Affected

quest

netvault_backup

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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