ZDI-26-373: Quest NetVault Backup NVBULibraryPort SQL Injection Remote Code Execution Vulnerability
A critical SQL injection vulnerability in Quest NetVault Backup's NVBULibraryPort component allows remote attackers to execute arbitrary code. Exploitation requires authentication, but the authentication mechanism can be bypassed. The flaw stems from improper validation of user-supplied strings in JSON-RPC messages, enabling code execution with NETWORK SERVICE privileges. Quest has issued an update to address this issue.
AI Analysis
Technical Summary
CVE-2026-9784 is a critical remote code execution vulnerability in Quest NetVault Backup affecting the NVBULibraryPort JSON-RPC message processing. The vulnerability arises due to insufficient validation of user input used in SQL queries, leading to SQL injection. Although authentication is nominally required, the authentication can be bypassed, allowing remote attackers to execute arbitrary code with NETWORK SERVICE privileges. Quest has released an update to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems with NETWORK SERVICE privileges, potentially compromising confidentiality, integrity, and availability of the system. The vulnerability can be exploited remotely without user interaction after bypassing authentication.
Mitigation Recommendations
Quest has issued an official update that corrects this vulnerability. Applying the vendor-provided patch or update is the recommended mitigation. No additional vendor-advised mitigations are stated.
ZDI-26-373: Quest NetVault Backup NVBULibraryPort SQL Injection Remote Code Execution Vulnerability
Description
A critical SQL injection vulnerability in Quest NetVault Backup's NVBULibraryPort component allows remote attackers to execute arbitrary code. Exploitation requires authentication, but the authentication mechanism can be bypassed. The flaw stems from improper validation of user-supplied strings in JSON-RPC messages, enabling code execution with NETWORK SERVICE privileges. Quest has issued an update to address this issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9784 is a critical remote code execution vulnerability in Quest NetVault Backup affecting the NVBULibraryPort JSON-RPC message processing. The vulnerability arises due to insufficient validation of user input used in SQL queries, leading to SQL injection. Although authentication is nominally required, the authentication can be bypassed, allowing remote attackers to execute arbitrary code with NETWORK SERVICE privileges. Quest has released an update to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems with NETWORK SERVICE privileges, potentially compromising confidentiality, integrity, and availability of the system. The vulnerability can be exploited remotely without user interaction after bypassing authentication.
Mitigation Recommendations
Quest has issued an official update that corrects this vulnerability. Applying the vendor-provided patch or update is the recommended mitigation. No additional vendor-advised mitigations are stated.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-373/","fetched":true,"fetchedAt":"2026-06-24T22:24:56.804Z","wordCount":199}
- Classification
- {"confidence":0.95,"severitySource":"heuristic","classifier":"rss-v2"}
Threat ID: 6a3c59a24853345fc1ee9668
Added to database: 06/24/2026, 22:26:42 UTC
Last enriched: 07/23/2026, 23:13:12 UTC
Last updated: 08/09/2026, 00:41:16 UTC
Views: 68
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