DSA-2025-281: Security Update for Dell Unity, Dell UnityVSA and Dell Unity XT Security Update for Multiple Vulnerabilities
Summary: Dell UnityVSA and Dell Unity XT remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.
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Impact
High
Details
| Proprietary Code CVEs | Description | CVSS Base Score | CVSS Vector String |
| CVE-2025-36604 | Dell Unity, version(s) 5.5 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution. | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CVE-2025-36605 |
Dell Unity, version(s) 5.5 and prior, contain(s) an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to the execution of malicious HTML or JavaScript code in a victim user's web browser in the context of the vulnerable web application. Exploitation may lead to information disclosure, session theft, or client-side request forgery. |
6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CVE-2025-36606 | Dell Unity, version(s) 5.5 and prior, contain(s) an OS Command Injection Vulnerability in its svc_nfssupport utility. An authenticated attacker could potentially exploit this vulnerability, escaping the restricted shell and execute arbitrary operating system commands with root privileges. | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVE-2025-36607 | Dell Unity, version(s) 5.5 and prior, contain(s) an OS Command Injection Vulnerability in its svc_nas utility. An authenticated attacker could potentially exploit this vulnerability, escaping the restricted shell and execute arbitrary operating system commands with root privileges. | 7.8 | 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-2025-36604 | Dell Unity, version(s) 5.5 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution. | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CVE-2025-36605 |
Dell Unity, version(s) 5.5 and prior, contain(s) an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to the execution of malicious HTML or JavaScript code in a victim user's web browser in the context of the vulnerable web application. Exploitation may lead to information disclosure, session theft, or client-side request forgery. |
6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CVE-2025-36606 | Dell Unity, version(s) 5.5 and prior, contain(s) an OS Command Injection Vulnerability in its svc_nfssupport utility. An authenticated attacker could potentially exploit this vulnerability, escaping the restricted shell and execute arbitrary operating system commands with root privileges. | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVE-2025-36607 | Dell Unity, version(s) 5.5 and prior, contain(s) an OS Command Injection Vulnerability in its svc_nas utility. An authenticated attacker could potentially exploit this vulnerability, escaping the restricted shell and execute arbitrary operating system commands with root privileges. | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected Products & Remediation
| Product | Software/Firmware | Affected Versions | Remediated Versions | Link |
| Dell Unity | Dell Unity Operating Environment (OE) | Versions prior to 5.5.1 | Version 5.5.1 or later | https://www.dell.com/support/home/product-support/product/unity-all-flash-family/drivers |
| Product | Software/Firmware | Affected Versions | Remediated Versions | Link |
| Dell Unity | Dell Unity Operating Environment (OE) | Versions prior to 5.5.1 | Version 5.5.1 or later | https://www.dell.com/support/home/product-support/product/unity-all-flash-family/drivers |
Revision History
| Revision | Date | Description |
| 1.0 | 2025-07-31 | Initial Release |
| 2.0 | 2025-07-31 | Updated the Acknowledgements section |
Acknowledgements
CVE-2025-36604, CVE-2025-36605: Dell would like to thank Sina Kheirkhah of watchTowr for reporting this issue.
CVE-2025-36606: Dell would like to thank xiaohei from Ubisectech Sirius Team for reporting this issue.
CVE-2025-36607: Dell would like to thank zzcentury from Ubisectech Sirius Team for reporting this issue.
Related Information
Legal Disclaimer
Affected Products
Dell EMC Unity, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Hybrid, Dell Unity Operating Environment (OE), Dell EMC UnityVSA Professional Edition/Unity Cloud EditionArticle Properties
Article Number: 000350756
Article Type: Dell Security Advisory
Last Modified: 31 Jul 2025
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