DSA-2021-144: Dell Wyse ThinOS Security Update for Multiple Vulnerabilities

Summary: Dell Wyse ThinOS (9.x) remediation is available for multiple security vulnerabilities that may 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-2021-21597 Dell Wyse ThinOS (9.x), version 9.0, contains a Sensitive Information Disclosure Vulnerability. An authenticated malicious user with physical access to the system may exploit this vulnerability to read sensitive information written to the log files. 7.2 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-21598 Dell Wyse ThinOS (9.x), versions 9.0, 9.1, and 9.1 MR1, contain a Sensitive Information Disclosure Vulnerability. An authenticated attacker with physical access to the system may exploit this vulnerability to read sensitive Smartcard data in log files. 3.9 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2021-21597 Dell Wyse ThinOS (9.x), version 9.0, contains a Sensitive Information Disclosure Vulnerability. An authenticated malicious user with physical access to the system may exploit this vulnerability to read sensitive information written to the log files. 7.2 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-21598 Dell Wyse ThinOS (9.x), versions 9.0, 9.1, and 9.1 MR1, contain a Sensitive Information Disclosure Vulnerability. An authenticated attacker with physical access to the system may exploit this vulnerability to read sensitive Smartcard data in log files. 3.9 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.

Affected Products & Remediation

Product Affected Versions Updated versions Link to update
Dell Wyse 3040 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 3040 Thin Client
Dell Wyse 3040 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 3040 Thin Client with PCoIP
Dell Wyse 5070 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5070 Thin Client
Dell Wyse 5470 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5470 Thin Client
Dell Wyse 5470 All-in-One Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5470 All-in-One Thin Client
Dell Wyse 5070 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5070 Thin Client with PCoIP
Dell Wyse 5470 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5470 Thin Client with PCoIP
Dell Wyse 5470 All-in-One Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5470 All-in-One Thin Client with PCoIP
Product Affected Versions Updated versions Link to update
Dell Wyse 3040 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 3040 Thin Client
Dell Wyse 3040 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 3040 Thin Client with PCoIP
Dell Wyse 5070 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5070 Thin Client
Dell Wyse 5470 Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5470 Thin Client
Dell Wyse 5470 All-in-One Thin Client 9.0, 9.1 9.1 MR3 Dell Wyse 5470 All-in-One Thin Client
Dell Wyse 5070 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5070 Thin Client with PCoIP
Dell Wyse 5470 Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5470 Thin Client with PCoIP
Dell Wyse 5470 All-in-One Thin Client with PCoIP 9.0, 9.1 9.1 MR3 Dell Wyse 5470 All-in-One Thin Client with PCoIP

Revision History

RevisionDateDescription
1.02021-07-21Initial Release

Related Information

Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide

Legal Disclaimer

Affected Products

Product Security Information, Dell ThinOS
Article Properties
Article Number: 000189543
Article Type: Dell Security Advisory
Last Modified: 18 Sept 2025
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