ZDI-26-373: Quest NetVault Backup NVBULibraryPort SQL Injection Remote Code Execution Vulnerability
A 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 arises from improper validation of user-supplied strings used in SQL queries, enabling code execution with NETWORK SERVICE privileges. Quest has issued an update to address this vulnerability.
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 stems from insufficient validation of user input before constructing SQL queries, leading to SQL injection. Although authentication is nominally required, the authentication mechanism can be bypassed, allowing remote attackers to execute arbitrary code with NETWORK SERVICE privileges. The vulnerability has a CVSS score of 8.8 and was publicly disclosed on 2026-06-24. Quest has released an update to fix this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems with NETWORK SERVICE privileges, potentially leading to full compromise of the affected backup server. The authentication bypass increases the risk by lowering the barrier to exploitation.
Mitigation Recommendations
Quest has issued an official update that corrects this vulnerability. Applying the vendor-provided patch or update is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
ZDI-26-373: Quest NetVault Backup NVBULibraryPort SQL Injection Remote Code Execution Vulnerability
Description
A 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 arises from improper validation of user-supplied strings used in SQL queries, enabling code execution with NETWORK SERVICE privileges. Quest has issued an update to address this vulnerability.
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 stems from insufficient validation of user input before constructing SQL queries, leading to SQL injection. Although authentication is nominally required, the authentication mechanism can be bypassed, allowing remote attackers to execute arbitrary code with NETWORK SERVICE privileges. The vulnerability has a CVSS score of 8.8 and was publicly disclosed on 2026-06-24. Quest has released an update to fix this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems with NETWORK SERVICE privileges, potentially leading to full compromise of the affected backup server. The authentication bypass increases the risk by lowering the barrier to exploitation.
Mitigation Recommendations
Quest has issued an official update that corrects this vulnerability. Applying the vendor-provided patch or update is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-373/","fetched":true,"fetchedAt":"2026-06-24T22:24:56.804Z","wordCount":199}
Threat ID: 6a3c59a24853345fc1ee9668
Added to database: 06/24/2026, 22:26:42 UTC
Last enriched: 06/24/2026, 22:27:37 UTC
Last updated: 06/24/2026, 23:58:39 UTC
Views: 3
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