CVE-2026-86400

CRITICAL 9.8

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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 arbitrary command execution with root privileges. 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.

CWE	CWE-287
Vendor	dell
Product	powerprotect data domain
Published	Oct 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Dell / PowerProtect Data Domain

0 < 8.9.0.0 or later 0 < 7.13.1.90 or later 0 < 8.3.1.50 or later 0 < 8.6.1.30 or later

References

NVD ↗ CVE.org ↗ EPSS Data ↗

dell.com: https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities