Denial-of-Service Vulnerability in Quest NetVault Backup by Quest Software
CVE-2026-13270

7.5HIGH

Key Information:

Vendor

Quest

Status
Netvault Backup
Vendor
CVE Published:
12 November 2026

What is CVE-2026-13270?

The Quest NetVault Backup nvpmgr service contains a vulnerability that allows remote attackers to trigger a denial-of-service condition. This is achieved through improper validation of user-supplied data, leading to an integer underflow before buffer allocation. The nvpmgr service, which operates by default on UDP port 20031, can be exploited by attackers without the need for authentication, making it crucial for users to secure their installations and monitor for any unusual activity.

Affected Version(s)

NetVault Backup 14.0.2.4

References

https://www.zerodayinitiative.com/advisories/ZDI-26-889/
x_research-advisory

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.