Improper Authentication in Dell PowerProtect Data Domain Products
CVE-2026-86400

9.8CRITICAL

Key Information:

Vendor

Dell
Status
Powerprotect Data Domain
Vendor
CVE Published:
28 October 2026

What is CVE-2026-86400?

Dell PowerProtect Data Domain products exhibit a vulnerability related to improper authentication. This flaw enables unauthenticated attackers with remote access to potentially exploit the vulnerability. Successful exploitation could lead to arbitrary command execution with elevated root privileges, allowing complete control of the affected systems. To mitigate this risk, Dell advises all users to upgrade to secure versions as soon as possible.

Affected Version(s)

PowerProtect Data Domain 0 < 8.9.0.0 or later

PowerProtect Data Domain 0 < 7.13.1.90 or later

PowerProtect Data Domain 0 < 8.3.1.50 or later

References

https://www.dell.com/support/kbdoc/en-us/000515178/dsa-20...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.