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Quest NetVault Backup StnzCreateKey flaw enables unauthenticated remote DoS

Original title: ZDI-26-888: Quest NetVault Backup StnzCreateKey Numeric Truncation Error Denial-of-Service Vulnerability

ZDI Published Advisories ()
Part of a story covered by 3 sourcesZDI discloses two unauthenticated Quest NetVault Backup denial-of-service flawsMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

ZDI-26-888 is a numeric truncation error, CVE-2026-13269, scored CVSS 7.5 with no fix named.

The Zero Day Initiative published ZDI-26-888, a numeric truncation error in StnzCreateKey on Quest NetVault Backup. Remote attackers can create a denial-of-service condition without authentication. ZDI assigned CVSS 7.5 and CVE-2026-13269. The notice does not list affected or fixed versions.

Unconfirmed: Affected versions and patch availability are not stated.

Key facts
  • The flaw is tracked as CVE-2026-13269 under advisory ZDI-26-888.
  • ZDI assigned a CVSS rating of 7.5.
  • No authentication is required to cause the denial of service.
Security assessment · AI, from the article

Impact: unauthenticated remote denial of service

ProductAffected
Quest NetVault Backup—
Analyze CVE-2026-13269 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-13269
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From the original article

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 ZDI has assigned a CVSS rating of 7.

ZDI Published Advisories

zerodayinitiative.com

Read the full article at ZDI Published Advisories

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.