Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1 unnecessary privileges

Summaryinfo

A vulnerability was found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1. It has been classified as critical. The affected element is an unknown function. Performing a manipulation results in unnecessary privileges. This vulnerability is reported as CVE-2026-21421. The attack requires a local approach. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1. This affects an unknown code block. The manipulation with an unknown input leads to a unnecessary privileges vulnerability. CWE is classifying the issue as CWE-250. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an execution with unnecessary privileges vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to elevation of privileges.

The advisory is shared at dell.com. This vulnerability is uniquely identified as CVE-2026-21421 since 12/24/2025. The exploitability is told to be easy. An attack has to be approached locally. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/05/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0520). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Dell PowerScale OneFS

Productinfo

Vendor

• Dell

Name

• PowerScale OneFS

Version

• 9.10.1.0
• 9.10.1.1
• 9.10.1.2
• 9.10.1.3
• 9.10.1.4
• 9.10.1.5
• 9.10.1.6
• 9.11.0
• 9.12.0.0
• 9.12.0.1

License

• commercial

Website

• Vendor: https://www.dell.com/

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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