Vulnerability · Published Oct 28, 2026 · Assigned by dell
CVE-2026-86400
Critical 9.8
In plain English
A critical-severity improper authentication in PowerProtect Data Domain from Dell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Dell | PowerProtect Data Domain | 0 – before 8.9.0.0 or later0 – before 7.13.1.90 or later0 – before 8.3.1.50 or later0 – before 8.6.1.30 or later |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H