EUVD-2026-39141
GHSA-fv4p-f98h-cj9r
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-facing JSON-RPC service with low-complexity SQLi yielding RCE as NETWORK SERVICE; PR:L reflects nominal auth, kept despite documented bypass, with full C/I/A impact.
Primary rating from Vendor (trendmicro).
CVSS VectorVendor: trendmicro
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionCVE.org
Quest NetVault Backup NVBURASDevice 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 NVBURASDevice 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-27648.
AnalysisAI
Remote code execution in Quest NetVault Backup arises from SQL injection in the NVBURASDevice JSON-RPC message handler, where attacker-controlled input is concatenated into SQL queries. Although authentication is nominally required, ZDI notes the existing authentication mechanism can be bypassed, so attackers can reach the vulnerable endpoint and execute code in the NETWORK SERVICE context. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the NetVault Backup NVBURASDevice JSON-RPC service endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.0 base score is 8.8 (High) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - network-reachable, low complexity, low privileges, no user interaction, with full confidentiality, integrity, and availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach the NetVault Backup server over the network leverages the authentication bypass to submit a crafted NVBURASDevice JSON-RPC message containing a malicious SQL payload. The injection is processed by the backend database and abused to execute arbitrary commands, giving the attacker code execution as NETWORK SERVICE on the backup host. … |
| Remediation | Upgrade to the patched NetVault Backup release referenced in the Quest 14.0.2 release notes (https://support.quest.com/technical-documents/netvault/14.0.2/release-notes#TOPIC-2338529); treat 14.0.2 as the fixed version per the vendor reference, and cross-check the ZDI advisory (https://www.zerodayinitiative.com/advisories/ZDI-26-370/). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and inventory all Quest NetVault Backup instances in production, document current versions, and contact Quest Software to confirm patch availability status. …
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External POC / Exploit Code
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