CVE-2026-86400: Dell PowerProtect Data Domain · Improper Authentication
Affects Dell PowerProtect Data DomainSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 8.9.0.0 or later : patch Dell PowerProtect Data Domain as a priority.
Data as of 28 Oct 2026, 09:13 UTC
- Patch
- Available – fixed in 8.9.0.0 or later, 8.6.1.30 or later, 8.3.1.50 or later +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Dell PowerProtect Data Domain to 8.9.0.0 or later, 8.6.1.30 or later, 8.3.1.50 or later or 7.13.1.90 or later.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DellPowerProtect Data Domain | Affected
| Fixed in
|
AI-suggested
Dell has released fixed versions addressing this vulnerability: 7.13.1.90 or later, 8.3.1.50 or later, 8.6.1.30 or later, and 8.9.0.0 or later. Customers should upgrade to these versions at the earliest opportunity to remediate the vulnerability. No other mitigations or temporary fixes are indicated.
Description
Dell PowerProtect Data Domain versions 7.7.1.0 through 8.8 and several LTS releases contain an improper authentication vulnerability (CWE-287). This flaw allows an unauthenticated remote attacker to execute arbitrary commands with root privileges, resulting in full system compromise. The vulnerability is rated critical with a CVSS score of 9.8. Dell has released fixed versions starting from 7.13.1.90, 8.3.1.50, 8.6.1.30, and 8.9.0.0 and recommends upgrading as soon as possible.