---
id: "CVE-2026-86393"
kind: "vulnerability"
aliases: ["CVE-2026-86393"]
title: "Dell PowerProtect Data Domain: privileged user can escalate privileges remotely"
severity: "high"
cvss: 7.2
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["backup-appliance", "data-domain", "dell", "infrastructure", "powerprotect"]
not_affected_if: ["version-outside-range"]
published_at: "2026-10-28T10:17:10+00:00"
first_seen_at: "2026-10-28T10:32:15+00:00"
updated_at: "2026-10-28T10:34:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86393", "first_seen_at": "2026-10-28T10:32:15+00:00"}]
---

# Dell PowerProtect Data Domain: privileged user can escalate privileges remotely

Several Dell PowerProtect Data Domain release lines contain an improper privilege management flaw. A high-privileged remote attacker can potentially escalate their privileges on the appliance.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Data Domain OS version against the affected ranges listed in the advisory (Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, LTS2026 8.6.1.0 through 8.6.1.20).
- Review which accounts hold high-privilege roles on the appliance.

## Fix

- Move Data Domain OS to a release fixed by Dell's advisory for the affected line; the sources do not name the fixed version, so unknown.

## Timeline

- 2026-10-28T10:32:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86393

## From the sources

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 Privilege Management vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_