CVE-2026-40635 | BDVDB-2026-370581 Detail

DellPowerScale OneFS

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact low. Attack vector: network.

Weaknesses#

CWE-377 Insecure Temporary File

References#

https://www.dell.com/support/kbdoc/en-us/000505684/dsa-2026-360-security-update-for-dell-powerscale-onefs-multiple-vulnerabilities

Exploit#

No public exploit known

History#

Version 12026-09-09Record published in the CVE List.
Version 22026-09-11Most recent update recorded in the CVE List.

Published

Published: 2026-09-09
Last modified: 2026-09-11

Vendor information

Vendor: Dell
Product: PowerScale OneFS

All Dell vulnerabilities

Score

5.4 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 33.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 9.13.1.1 or later
Fixed
9.13.1.1 or later
Vulnerable
< 9.15.0.0 or later
Fixed
9.15.0.0 or later

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.4 Medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).