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, allowing remote attackers to execute arbitrary code with SYSTEM privileges. Exploitation requires authentication, but 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 affecting the NVBULogDaemon JSON-RPC message processing. The flaw arises from insufficient validation of user-supplied strings before executing system calls, enabling attackers to execute arbitrary code as SYSTEM. Although authentication is nominally required, it can be bypassed, increasing exploitability. The vulnerability has a CVSS score of 8.8 and is classified as critical. 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 Quest NetVault Backup installations. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Quest has issued an official update to correct this vulnerability. Applying the vendor-provided patch or update is the recommended remediation. Since the vendor manages remediation through an official fix, users should follow Quest's release notes and update guidance to mitigate this issue.
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, allowing remote attackers to execute arbitrary code with SYSTEM privileges. Exploitation requires authentication, but 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 affecting the NVBULogDaemon JSON-RPC message processing. The flaw arises from insufficient validation of user-supplied strings before executing system calls, enabling attackers to execute arbitrary code as SYSTEM. Although authentication is nominally required, it can be bypassed, increasing exploitability. The vulnerability has a CVSS score of 8.8 and is classified as critical. 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 Quest NetVault Backup installations. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Quest has issued an official update to correct this vulnerability. Applying the vendor-provided patch or update is the recommended remediation. Since the vendor manages remediation through an official fix, users should follow Quest's release notes and update guidance to mitigate this issue.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-376/","fetched":true,"fetchedAt":"2026-06-24T22:24:51.175Z","wordCount":199}
Threat ID: 6a3c59a24853345fc1ee965f
Added to database: 06/24/2026, 22:26:42 UTC
Last enriched: 06/24/2026, 22:27:21 UTC
Last updated: 06/25/2026, 03:22:41 UTC
Views: 6
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