DSA-2021-056: Dell Client Platform Security Update for Treck TCP/IP Stack Vulnerabilities in Teradici Firmware and Remote Workstation Cards

Summary: Dell Client Platforms (see impacted products listed below) require a security update to address a vulnerability within the Treck TCP/IP stack used in the Teradici Tera2 Zero Client firmware and the Tera2 Remote Workstation Card. ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Impact

Critical

Details

Third-party Component
 

CVE(s)

More information

Teradici Tera2 Zero Client

Teradici Tera2 Remote
Workstation Card

CVE-2020-25066,
CVE-2020-27337,
CVE-2020-27338,
CVE-2020-11904,
CVE-2020-27336

See the Teradici advisory TERA-SA-000071 for additional details.

See NVD (http://nvd.nist.gov/) for individual scores for each CVE.

Third-party Component
 

CVE(s)

More information

Teradici Tera2 Zero Client

Teradici Tera2 Remote
Workstation Card

CVE-2020-25066,
CVE-2020-27337,
CVE-2020-27338,
CVE-2020-11904,
CVE-2020-27336

See the Teradici advisory TERA-SA-000071 for additional details.

See NVD (http://nvd.nist.gov/) for individual scores for each CVE.

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

Affected products:      
  • Dell Precision platforms with installed remote workstation cards using Teradici firmware (see Resolution section below for complete list of affected products)
  • Dell Wyse 5030 Zero Clients (Wyse P25)
  • Dell Wyse 5050 All-In-One Zero Clients
  • Dell Wyse 7030 Zero Clients (Wyse P45)
To get a concise list of the drivers available for your Dell computer, refer to the Dell Knowledge Base
article 123347: Drivers and Downloads FAQs    

Resolution:      
Refer to the table at the end of this document for Dell Client releases containing a resolution to the vulnerability. Dell recommends all customers update to the latest firmware version at the earliest opportunity.

Dell Client Consumer and Commercial Platforms Affected
The following is a list of impacted products, firmware update versions and release dates:     
 
Product Firmware Update Version
(or greater)
Release Date (MM/DD/YYYY)
Expected Release ( Month/YYYY)
Precision 3630 Tower  2021.03  for customers with an all access subscription
Feb 9, 2021
Precision 3630 XL Tower  2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3430 XL  2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3431 Tower    2021.03  for customers with an all access subscription Feb 9, 2021
Precision 5820 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 5820 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7820 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7820 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 XL Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3930 Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3930 XL Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 5030 Zero Client (Wyse P25) 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 5050 All-In-One Zero Client 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 7030 Zero Client (Wyse P45) 2021.03  for customers with an all access subscription Feb 9, 2021
Affected products:      
  • Dell Precision platforms with installed remote workstation cards using Teradici firmware (see Resolution section below for complete list of affected products)
  • Dell Wyse 5030 Zero Clients (Wyse P25)
  • Dell Wyse 5050 All-In-One Zero Clients
  • Dell Wyse 7030 Zero Clients (Wyse P45)
To get a concise list of the drivers available for your Dell computer, refer to the Dell Knowledge Base
article 123347: Drivers and Downloads FAQs    

Resolution:      
Refer to the table at the end of this document for Dell Client releases containing a resolution to the vulnerability. Dell recommends all customers update to the latest firmware version at the earliest opportunity.

Dell Client Consumer and Commercial Platforms Affected
The following is a list of impacted products, firmware update versions and release dates:     
 
Product Firmware Update Version
(or greater)
Release Date (MM/DD/YYYY)
Expected Release ( Month/YYYY)
Precision 3630 Tower  2021.03  for customers with an all access subscription
Feb 9, 2021
Precision 3630 XL Tower  2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3430 XL  2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3431 Tower    2021.03  for customers with an all access subscription Feb 9, 2021
Precision 5820 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 5820 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7820 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7820 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 XL Tower 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 7920 XL Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3930 Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Precision 3930 XL Rack 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 5030 Zero Client (Wyse P25) 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 5050 All-In-One Zero Client 2021.03  for customers with an all access subscription Feb 9, 2021
Wyse 7030 Zero Client (Wyse P45) 2021.03  for customers with an all access subscription Feb 9, 2021

Related Information

Affected Products

Product Security Information

Products

Wyse Hardware, Mobile Workstations
Article Properties
Article Number: 000185438
Article Type: Dell Security Advisory
Last Modified: 18 Sep 2025
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