# CVE-2026-13269: Quest NetVault Backup numeric truncation error denial of service

Source: https://junglewise.ai/threats/cve-2026-13269-quest-netvault-backup-stnzcreatekey-numeric-truncation-error  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-13269 · Severity: high · CVSS 7.5 · Published 2026-11-12

Quest NetVault Backup is a data protection and recovery solution used by organizations to back up and restore business-critical systems. A numeric truncation error in the StnzCreateKey function allows remote attackers without authentication to crash the service, causing data backup and recovery operations to be unavailable.

Technologies: [Quest NetVault Backup](https://junglewise.ai/threats/technologies/netvault-backup). Vendors: [Quest](https://junglewise.ai/threats/vendors/quest).

## Quick answers

**Is CVE-2026-13269 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-13269 being exploited in the wild.

**How severe is CVE-2026-13269?** High severity, with a CVSS score of 7.5, published 12 November 2026.

**Which products and versions are affected?** Quest NetVault Backup before 14.1.3.

**Is there a fix for CVE-2026-13269?** Yes: fixed in NetVault Backup 14.1.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-13269 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-13269?** Check whether you run Quest NetVault Backup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in NetVault Backup 14.1.3

## Technical details

A lack of proper validation of user-supplied data in the StnzCreateKey function causes a numeric truncation error before buffer allocation. The vulnerability is remotely exploitable without authentication and requires no user interaction, allowing an attacker to trigger a denial-of-service condition that crashes the backup service.

## Affected products

- Quest NetVault Backup before 14.1.3

## Timeline

- 2026-04-23: disclosed: Vulnerability reported to vendor
- 2026-11-06: advisory: Coordinated public release of advisory

## References

- [https://www.zerodayinitiative.com/advisories/ZDI-26-888/](https://www.zerodayinitiative.com/advisories/ZDI-26-888/)

## Related threats

- [Quest NetVault Backup nvpmgr integer underflow denial-of-service](https://junglewise.ai/threats/cve-2026-13270-quest-netvault-backup-nvpmgr-integer-underflow-denial-of-service)
- [Quest NetVault Backup command injection in NVBULogDaemon](https://junglewise.ai/threats/cve-2026-9787-quest-netvault-backup-command-injection-in-nvbulogdaemon)
- [Quest NetVault Backup SQL injection in NVBUDashboard](https://junglewise.ai/threats/cve-2026-9786-quest-netvault-backup-sql-injection-in-nvbudashboard)
- [Quest NetVault Backup SQL injection in NVBULibrarySlot](https://junglewise.ai/threats/cve-2026-9785-quest-netvault-backup-sql-injection-in-nvbulibraryslot)
- [Quest NetVault Backup SQL injection in NVBULibraryPort](https://junglewise.ai/threats/cve-2026-9784-quest-netvault-backup-sql-injection-in-nvbulibraryport)