CVE-2026-13270
Quest NetVault Backup nvpmgr Integer Underflow Denial-of-Service Vulnerability
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| NetVault Backup Quest |
14.0.2.4 (affected)
Other versions: unknown |
CNA: zdi |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.0 / 7.5 high |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: zdi |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.zerodayinitiative.com/advisories/ZDI-26-889/CNA: zdi · x_research-advisory
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