Vulnerability · Published Oct 28, 2026 · Assigned by dell

CVE-2026-86391

Medium 6.4

In plain English

A medium-severity authentication bypass by spoofing in PowerProtect Data Domain Management Center from Dell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.4%top 68.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Dell PowerProtect Data Domain Management Center, 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 Authentication Bypass by Spoofing vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

Affected products (as reported)

Vendor	Product	Versions
Dell	PowerProtect Data Domain Management Center	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-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

References

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