DSA-2026-261: Security Update for Dell PowerScale OneFS Multiple Vulnerabilities
Summary: 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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Impact
Medium
Details
| Proprietary Code CVEs | Description | CVSS Base Score | CVSS Vector String |
| CVE-2026-49501 | Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, and versions 9.11.0.0 through 9.13.0.2 contains an Improper Privilege Management 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:H  |
| CVE-2026-40633 | Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, versions 9.11.0.0 through 9.13.0.2 contains an Insertion of Sensitive Information into Log File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure. | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Proprietary Code CVEs | Description | CVSS Base Score | CVSS Vector String |
| CVE-2026-49501 | Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, and versions 9.11.0.0 through 9.13.0.2 contains an Improper Privilege Management 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:H |
| CVE-2026-40633 | Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, versions 9.11.0.0 through 9.13.0.2 contains an Insertion of Sensitive Information into Log File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure. | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected Products & Remediation
| CVEs Addressed | Product | Affected Versions | Remediated Versions | Link |
| CVE-2026-40633, CVE-2026-49501 | PowerScale Onefs | Versions 9.5.0.0 through 9.10.1.7 | Version 9.10.1.8 or later | PowerScale OneFS Downloads Area |
| CVE-2026-40633, CVE-2026-49501 | PowerScale Onefs | Versions 9.11.0.0 through 9.13.0.2 | Version 9.13.1.0 or later | PowerScale OneFS Downloads Area |
| CVEs Addressed | Product | Affected Versions | Remediated Versions | Link |
| CVE-2026-40633, CVE-2026-49501 | PowerScale Onefs | Versions 9.5.0.0 through 9.10.1.7 | Version 9.10.1.8 or later | PowerScale OneFS Downloads Area |
| CVE-2026-40633, CVE-2026-49501 | PowerScale Onefs | Versions 9.11.0.0 through 9.13.0.2 | Version 9.13.1.0 or later | PowerScale OneFS Downloads Area |
We encourage all customers to adopt the Long-Term Support (LTS) 2026 version which is 9.13.1.x code line, with the latest maintenance release.
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 & Mitigations
| CVE-2026-40633, CVE-2026-49501 | Configure all non-root users who require CLI access to use the restricted shell as their default login shell. More information regarding restricted shell can be found at: OneFS Restricted Shell | Dell Technologies Info Hub |
Revision History
| Revision | Date | Description |
| 1.0 | 2026-06-30 | Initial Release |
Related Information
Legal Disclaimer
Affected Products
Isilon, PowerScale OneFSArticle Properties
Article Number: 000483600
Article Type: Dell Security Advisory
Last Modified: 30 يونيو 2026
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