CVE-2026-9786
Received Received - Intake
NVBUDashboard SQL Injection in Quest NetVault Backup

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: Zero Day Initiative

Description
Quest NetVault Backup NVBUDashboard SQL 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 NVBUDashboard JSON-RPC messages. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-27626.
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Meta Information
Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-06-25
AI Q&A
2026-06-25
EPSS Evaluated
N/A
NVD
CVE-2026-9786
EUVD
EUVD-2026-39147
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
quest netvault_backup to 2026-06-24 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Executive Summary

CVE-2026-9786 is a remote code execution vulnerability in Quest NetVault Backup. It occurs due to improper validation of user-supplied strings in NVBUDashboard JSON-RPC messages, which leads to SQL injection. Although authentication is normally required, this vulnerability allows attackers to bypass it and execute arbitrary code.

The attacker can exploit this flaw to run code with the privileges of the NETWORK SERVICE account on the affected system.

Impact Analysis

This vulnerability can have severe impacts as it allows remote attackers to execute arbitrary code on affected systems. This means an attacker could potentially take control of the system, access sensitive data, disrupt services, or use the compromised system to launch further attacks.

Since the code execution happens with NETWORK SERVICE privileges, the attacker may gain significant access within the network environment.

Mitigation Strategies

To mitigate this vulnerability, you should apply the update released by Quest that addresses the issue.

Since the vulnerability allows remote code execution via SQL injection in NVBUDashboard JSON-RPC messages and can bypass authentication, it is critical to update the affected software as soon as possible to prevent exploitation.

Compliance Impact

The provided information does not specify how the CVE-2026-9786 vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

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