CVE-2026-9784

HIGH 8.8

Quest NetVault Backup NVBULibraryPort SQL Injection Remote Code Execution Vulnerability

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

Quest NetVault Backup NVBULibraryPort 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 NVBULibraryPort 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-27631.

CWE	CWE-89
Vendor	quest
Product	netvault backup
Published	Jun 24, 2026

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CVSS v3 Breakdown

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Versions

Quest / NetVault Backup

14.0.0.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗

zerodayinitiative.com: https://www.zerodayinitiative.com/advisories/ZDI-26-373/ support.quest.com: https://support.quest.com/technical-documents/netvault/14.0.2/release-notes#TOPIC-2338529