DSA-2026-038: Security Update for Dell PowerScale OneFS Multiple Vulnerabilities

Zusammenfassung: Dell PowerScale OneFS remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.

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Auswirkungen

Medium

Details

Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2026-21421 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. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-22270 Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an uncontrolled search path element vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to denial of service, elevation of privileges, and information disclosure. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21423 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. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21424 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. 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21425 Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an incorrect privilege assignment vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges. 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21426 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 denial of service, elevation of privileges, and information disclosure. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21422 Dell PowerScale OneFS, versions 9.10.0.0 through 9.13.1.0, contains an external control of system or configuration setting vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to protection mechanism bypass. 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:LThis hyperlink is taking you to a website outside of Dell Technologies.

 

Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2026-21421 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. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-22270 Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an uncontrolled search path element vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to denial of service, elevation of privileges, and information disclosure. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21423 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. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21424 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. 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21425 Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an incorrect privilege assignment vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges. 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21426 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 denial of service, elevation of privileges, and information disclosure. 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HThis hyperlink is taking you to a website outside of Dell Technologies.
CVE-2026-21422 Dell PowerScale OneFS, versions 9.10.0.0 through 9.13.1.0, contains an external control of system or configuration setting vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to protection mechanism bypass. 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:LThis hyperlink is taking you to a website outside of Dell Technologies.

 

Dell Technologies empfiehlt allen Kunden, sowohl die CVSS-Gesamtbewertung als auch alle relevanten zeitlichen und umweltbezogenen Bewertungen zu berücksichtigen, die sich auf den potenziellen Schweregrad einer bestimmten Sicherheitsschwachstelle auswirken können.

Betroffene Produkte und Korrektur

CVEs Addressed Product Affected Versions Remediated Versions Link
CVE-2026-21421, CVE-2026-22270, CVE-2026-21423, CVE-2026-21424, CVE-2026-21425, CVE-2026-21426 PowerScale OneFS Versions prior to 9.10.1.6 Version 9.10.1.6 or later PowerScale OneFS Downloads Area
CVE-2026-21421, CVE-2026-22270, CVE-2026-21423, CVE-2026-21424, CVE-2026-21425, CVE-2026-21426, CVE-2026-21422 PowerScale OneFS Versions 9.11.0.0 through 9.12.0.1 Version 9.13.0.0 or later PowerScale OneFS Downloads Area
CVE-2026-21422 PowerScale OneFS Version 9.10.0.0 through 9.13.1.0 Version 9.14.0.0 or later PowerScale OneFS Downloads Area

 

CVEs Addressed Product Affected Versions Remediated Versions Link
CVE-2026-21421, CVE-2026-22270, CVE-2026-21423, CVE-2026-21424, CVE-2026-21425, CVE-2026-21426 PowerScale OneFS Versions prior to 9.10.1.6 Version 9.10.1.6 or later PowerScale OneFS Downloads Area
CVE-2026-21421, CVE-2026-22270, CVE-2026-21423, CVE-2026-21424, CVE-2026-21425, CVE-2026-21426, CVE-2026-21422 PowerScale OneFS Versions 9.11.0.0 through 9.12.0.1 Version 9.13.0.0 or later PowerScale OneFS Downloads Area
CVE-2026-21422 PowerScale OneFS Version 9.10.0.0 through 9.13.1.0 Version 9.14.0.0 or later PowerScale OneFS Downloads Area

 

Notes

  1. We encourage all customers to adopt the Long-Term Support (LTS) 2025 version which is 9.10.1.x code line, with the latest maintenance release.
  2. For more information on LTS code lines, see Dell Infrastructure Solutions Group (ISG) LTS Release Support Customer Summary and Security Update Release Schedule for Supported Versions of Dell PowerScale OneFS.

Workarounds und Korrekturmaßnahmen

CVE ID Workaround and Mitigations
CVE‑2026‑21422

Issue:  

During the first time installation of Dell PowerScale OneFS versions 9.10.0.0 through 9.13.1.0, the initial run of the Security Checker will reset the SSH configuration to default settings.  

Note: Systems that reach these versions through an upgrade path retain their existing (custom) SSH configuration and are therefore not affected.

 

Remediation: 

Customers who intend to modify the default SSH settings must allow Security Checker to complete its first run before applying any custom SSH settings. To do this, run the following commands: 

1. Start the Security Checker: 

isi security check start

2. Verify completion:  

isi security check status

3. Once the Security Checker has successfully completed, SSH configuration changes can be applied safely without being overwritten.

 

Revisionsverlauf

RevisionDateDescription
1.02026-02-25Initial Release
2.02026-04-29Major update: Revised affected version range and mitigation guidance for CVE‑2026‑21422

 

Zugehörige Informationen

Betroffene Produkte

PowerScale OneFS
Artikeleigenschaften
Artikelnummer: 000432452
Artikeltyp: Dell Security Advisory
Zuletzt geändert: 29 Apr. 2026
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