CVE-2026-13270

Quest NetVault Backup nvpmgr Integer Underflow Denial-of-Service Vulnerability

Published Nov 12, 2026 CVSS 3.0 · 7.5 High EPSS < 1% KEV · Not listed
Description
Quest NetVault Backup nvpmgr Integer Underflow Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Quest NetVault Backup. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the nvpmgr service, which listens on UDP port 20031 by default. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-28744.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Quest
Quest netvault Backup
Vendors & Products Quest
Quest netvault Backup
Type Values Removed Values Added
Description Quest NetVault Backup nvpmgr Integer Underflow Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Quest NetVault Backup. Authentication is not required to exploit this vulnerability. The specific flaw exists within the nvpmgr service, which listens on UDP port 20031 by default. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-28744.
Title Quest NetVault Backup nvpmgr Integer Underflow Denial-of-Service Vulnerability
Weaknesses CWE-191
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zdi
Published
Updated
Nov 12, 2026, 2:49 AM
Reserved
Jun 24, 2026, 9:23 PM
Status
Awaiting Analysis
Published
Nov 12, 2026, 3:17 AM
Modified
Nov 12, 2026, 6:48 PM