ZDI-26-376: Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability
A command injection vulnerability exists in Quest NetVault Backup's NVBULogDaemon component that allows remote attackers to execute arbitrary code with SYSTEM privileges. Although exploitation requires authentication, the authentication mechanism can be bypassed. Quest has issued an update to address this vulnerability.
AI Analysis
Technical Summary
CVE-2026-9787 is a remote code execution vulnerability in Quest NetVault Backup due to improper validation of user-supplied strings in NVBULogDaemon JSON-RPC messages. This flaw allows an attacker to execute arbitrary system commands in the context of SYSTEM. The vulnerability can be exploited remotely and authentication is required but can be bypassed. Quest has released an update to fix this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with SYSTEM privileges on affected installations of Quest NetVault Backup. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Quest has issued an update to correct this vulnerability. Applying the official vendor update is the recommended remediation. Patch status is confirmed by the vendor advisory linked in the source content.
ZDI-26-376: Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability
Description
A command injection vulnerability exists in Quest NetVault Backup's NVBULogDaemon component that allows remote attackers to execute arbitrary code with SYSTEM privileges. Although exploitation requires authentication, the authentication mechanism can be bypassed. Quest has issued an update to address this vulnerability.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9787 is a remote code execution vulnerability in Quest NetVault Backup due to improper validation of user-supplied strings in NVBULogDaemon JSON-RPC messages. This flaw allows an attacker to execute arbitrary system commands in the context of SYSTEM. The vulnerability can be exploited remotely and authentication is required but can be bypassed. Quest has released an update to fix this issue.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with SYSTEM privileges on affected installations of Quest NetVault Backup. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Quest has issued an update to correct this vulnerability. Applying the official vendor update is the recommended remediation. Patch status is confirmed by the vendor advisory linked in the source content.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-376/","fetched":true,"fetchedAt":"2026-06-24T22:24:51.175Z","wordCount":199}
- Classification
- {"confidence":0.95,"severitySource":"heuristic","classifier":"rss-v2"}
Threat ID: 6a3c59a24853345fc1ee965f
Added to database: 06/24/2026, 22:26:42 UTC
Last enriched: 07/23/2026, 23:12:54 UTC
Last updated: 08/07/2026, 12:41:13 UTC
Views: 94
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