CVE-2026-9787: Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability

Q: How do I fix CVE-2026-9787?

netvault backup: upgrade to 14.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-9787 being exploited?

CVE-2026-9787 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-9787 affect?

CVE-2026-9787 affects netvault backup. Severity is high (CVSS 8.8). Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest NetVault Backup. Although authentication is r

Q: How urgent is CVE-2026-9787?

Priority 54/100. High severity; EPSS top 7%: very likely to be exploited

This month

HIGH 8.8UPGRADE

CVE-2026-9787 is a high-severity flaw (CVSS 8.8) affecting netvault backup. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest NetVault Backup. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the processing of NVBULogDaemon JSON-RPC messages. The issue results from the lack

Why this priority

High severity
EPSS top 7%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	5.5% (top 7%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-06-25
Last modified	2026-10-25

Publisher (CNA): Zero Day Initiative · Vendor: quest

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-25 00:17 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

quest netvault backup UPGRADE

Affected: < 14.0.2

Fixed in: 14.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy netvault-backup || rpm -q netvault-backup || netvault-backup --version

2. UPGRADE to 14.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade netvault-backup

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade netvault-backup

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · mingw-qt5-qtwebkit · FIXED · 5.212.0-0.46.alpha4.fc46 · FEDORA-2026-46ae541c22 · source

sudo dnf upgrade --advisory=FEDORA-2026-46ae541c22

Fedora ELN · kdominate · FIXED · 26.08.2-2.eln159 · FEDORA-2026-b1d98239fd · source

sudo dnf upgrade --advisory=FEDORA-2026-b1d98239fd

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-9787?

netvault backup: upgrade to 14.0.2. Exact commands for each OS are on this page.

Is CVE-2026-9787 being exploited?

CVE-2026-9787 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-9787 affect?

CVE-2026-9787 affects netvault backup. Severity is high (CVSS 8.8). Quest NetVault Backup NVBULogDaemon Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest NetVault Backup. Although authentication is r

How urgent is CVE-2026-9787?

Priority 54/100. High severity; EPSS top 7%: very likely to be exploited

Related CVEs

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CVE-2026-9780 HIGH 8.8 UPGRADE Quest NetVault Backup addclient3 Cross-Site Scripting Authentication Bypass Vulnerability
CVE-2026-9781 HIGH 8.8 UPGRADE Quest NetVault Backup NVBURASDevice SQL Injection Remote Code Execution Vulnerability
CVE-2026-9782 HIGH 8.8 UPGRADE Quest NetVault Backup NVBUDeviceDrive SQL Injection Remote Code Execution Vulnerability

References

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