SQL Injection in Quest Netvault Backup
CVE-2026-9786
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.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Quest Netvault Backup — versions 14.0.0.19
- Quest Netvault Backup
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-375/ (x_research-advisory, Vendor Advisory)
- support.quest.com/technical-documents/netvault/14.0.2/release-notes (vendor-advisory, Release Notes)
Frequently asked questions
- What is CVE-2026-9786?
- CVE-2026-9786 is a high-severity vulnerability in Quest Netvault Backup, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-06-25.
- How severe is CVE-2026-9786?
- High severity. CVSS v3 base score is 8.8 out of 10.