CVE-2026-86397: Critical severity Dell PowerProtect Data Domain vulnerability

Published Oct 28, 2026
·
Updated

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to privileged account creation. This is a critical severity vulnerability as it allows an attacker to take complete control of the system. Dell recommends customers to upgrade at the earliest opportunity.

Affected Software

1 affected component
Dell PowerProtect Data Domain>=7.7.1.0<=8.8, >=7.13.1.0<=7.13.1.80, >=8.3.1.0<=8.3.1.40, >=8.6.1.0<=8.6.1.20

Event History

Oct 28, 2026
CVE Published
via MITRE·09:02 AM
Data Sourced
via MITRE·09:02 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who is exposed to exploitation?

Any affected Dell PowerProtect Data Domain system that an unauthenticated attacker can reach remotely is exposed. The vulnerability requires no prior authentication or user interaction.

2

What could an attacker achieve?

A remote unauthenticated attacker could create a privileged account, potentially taking complete control of the affected system. The reported impact includes confidentiality, integrity, and availability compromise.

3

Which releases are affected?

Affected releases are Feature Release 7.7.1.0 through 8.8; LTS2024 7.13.1.0 through 7.13.1.80; LTS2025 8.3.1.0 through 8.3.1.40; and LTS2026 8.6.1.0 through 8.6.1.20.

4

What should organizations do?

Dell recommends upgrading affected systems at the earliest opportunity. The provided information does not specify compensating controls for systems that cannot yet be upgraded.

Contact

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