---
id: CVE-2026-40635
title: >-
  Dell PowerScale OneFS versions 9.12.0.0 through 9.13.1.0 contain an Insecure
  Temporary File vulnerability
summary: >-
  Dell PowerScale OneFS versions 9.12.0.0 through 9.13.1.0 contain an Insecure
  Temporary File vulnerability. A low privileged remote attacker could
  potentially exploit this vulnerability, leading to denial of service and
  information tamper…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-377
vendor: dell
product: powerscale_onefs
affected:
  - 'powerscale_onefs >= 9.12.0.0, <= 9.13.1.0'
published: '2026-09-09'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:30:57.497'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-40635'
references:
  - url: >-
      https://www.dell.com/support/kbdoc/en-us/000505684/dsa-2026-360-security-update-for-dell-powerscale-onefs-multiple-vulnerabilities
    label: security_alert@emc.com
tags:
  - nvd
  - cve.org
epss: 0.0039
epssPercentile: 0.30389
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T16:31:58.040517Z'
ingestedAt: '2026-09-14T11:11:19.881Z'
---

## Overview

Dell PowerScale OneFS versions 9.12.0.0 through 9.13.1.0 contain an Insecure Temporary File vulnerability. A low privileged remote attacker could potentially exploit this vulnerability, leading to denial of service and information tampering.

## Affected

- `powerscale_onefs >= 9.12.0.0, <= 9.13.1.0`

## Remediation

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