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.

• CWE-78

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

Published

Jun 25, 2026

Last Modified

Oct 25, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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