---
id: CVE-2026-79686
title: Dell PowerStore contains a Protection Mechanism Failure vulnerability
summary: >-
  Dell PowerStore contains a Protection Mechanism Failure vulnerability. An
  authenticated user with limited privileges could potentially exploit this
  vulnerability to bypass access restrictions and gain escalated privileges.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-693
vendor: dell
product: powerstoreos
affected:
  - powerstoreos = 4.1.0.0
  - powerstoreos = 4.1.0.1
  - powerstoreos = 4.1.0.2
  - powerstoreos = 4.1.0.3
  - powerstoreos = 4.1.0.4
  - powerstoreos = 4.1.0.5
  - powerstoreos = 4.3.0.0
  - powerstoreos = 4.3.1.0
  - powerstoreos = 4.3.1.1
published: '2026-09-01'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T17:26:23.117'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79686'
references:
  - url: >-
      https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities
    label: security_alert@emc.com
tags:
  - nvd
epss: 0.00509
epssPercentile: 0.41282
ingestedAt: '2026-10-02T18:25:05.803Z'
---

## Overview

Dell PowerStore contains a Protection Mechanism Failure vulnerability. An authenticated user with limited privileges could potentially exploit this vulnerability to bypass access restrictions and gain escalated privileges.

## Affected

- `powerstoreos = 4.1.0.0`
- `powerstoreos = 4.1.0.1`
- `powerstoreos = 4.1.0.2`
- `powerstoreos = 4.1.0.3`
- `powerstoreos = 4.1.0.4`
- `powerstoreos = 4.1.0.5`
- `powerstoreos = 4.3.0.0`
- `powerstoreos = 4.3.1.0`
- `powerstoreos = 4.3.1.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.