CVE-2026-21423

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-04 · updated 2026-06-17
Weakness: CWE-276

Description

Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an incorrect default permissions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to code execution, denial of service, elevation of privileges, and information disclosure.

Affected products

Dell PowerScale OneFS: before 9.10.1.6; from 9.11.0.0 before 9.13.0.0 — fixed in 9.10.1.6, 9.13.0.0

How to fix

Upgrade to a fixed version: Dell PowerScale OneFS 9.10.1.6, 9.13.0.0. Check the vendor advisory for mitigations.

References

https://www.dell.com/support/kbdoc/en-sg/000432452/dsa-2026-038-security-update-for-dell-powerscale-onefs-multiple-vulnerabilities

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