Summary

A security update is available for Windows Embedded Compact 7. This update addresses a vulnerability in which an Invalid, maliciously crafted certificate can make a validator spend large amounts of CPU time on path validation. This issue can be remotely leveraged to disable servers that accept client certificates. For more information about this issue, see the following article:

Software update information

Download information

This Windows Embedded Compact 7 Monthly Update (March 2021) is now available from Microsoft. To download the update, go to the Device Partner Center (DPC).

Prerequisites

This update is supported only if all previous updates for this product are installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

  • On the Build menu, select Clean Solution, and then select Build Solution.

  • On the Build menu, select Rebuild Solution.

You don't have to restart the computer after you apply this software update.

Update replacement information

This update doesn't replace any other updates.

File information

File attributes

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight-saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

File name

File size

Date

Time

Path

Certstor.lib

2,324,966

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Checked

Chain.lib

663,750

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Checked

Certstor.lib

2,809,216

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Debug

Chain.lib

778,322

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Debug

Certstor.lib

2,609,106

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Retail

Chain.lib

699,616

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv5\Retail

Certstor.lib

2,325,122

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv6\Checked

Chain.lib

663,806

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv6\Checked

Certstor.lib

2,809,044

16-Mar-2021

11:19

Public\Common\Oak\Lib\Armv6\Debug

Chain.lib

778,378

16-Mar-2021

11:19

Public\Common\Oak\Lib\Armv6\Debug

Certstor.lib

2,609,258

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv6\Retail

Chain.lib

699,672

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv6\Retail

Certstor.lib

2,315,504

16-Mar-2021

11:21

Public\Common\Oak\Lib\Armv7\Checked

Chain.lib

663,096

16-Mar-2021

11:21

Public\Common\Oak\Lib\Armv7\Checked

Certstor.lib

2,798,890

16-Mar-2021

11:19

Public\Common\Oak\Lib\Armv7\Debug

Chain.lib

777,734

16-Mar-2021

11:19

Public\Common\Oak\Lib\Armv7\Debug

Certstor.lib

2,600,530

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv7\Retail

Chain.lib

699,188

16-Mar-2021

11:20

Public\Common\Oak\Lib\Armv7\Retail

Certstor.lib

2,289,726

16-Mar-2021

11:20

Public\Common\Oak\Lib\Mipsii\Checked

Chain.lib

637,296

16-Mar-2021

11:20

Public\Common\Oak\Lib\Mipsii\Checked

Certstor.lib

2,650,012

16-Mar-2021

11:18

Public\Common\Oak\Lib\Mipsii\Debug

Chain.lib

745,002

16-Mar-2021

11:18

Public\Common\Oak\Lib\Mipsii\Debug

Certstor.lib

2,562,418

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii\Retail

Chain.lib

674,198

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii\Retail

Certstor.lib

2,291,232

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii_fp\Checked

Chain.lib

637,758

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii_fp\Checked

Certstor.lib

2,651,574

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii_fp\Debug

Chain.lib

745,444

16-Mar-2021

11:19

Public\Common\Oak\Lib\Mipsii_fp\Debug

Certstor.lib

2,564,022

16-Mar-2021

11:18

Public\Common\Oak\Lib\Mipsii_fp\Retail

Chain.lib

674,640

16-Mar-2021

11:18

Public\Common\Oak\Lib\Mipsii_fp\Retail

Certstor.lib

1,992,210

16-Mar-2021

11:19

Public\Common\Oak\Lib\Sh4\Checked

Chain.lib

586,424

16-Mar-2021

11:19

Public\Common\Oak\Lib\Sh4\Checked

Certstor.lib

2,301,248

16-Mar-2021

11:19

Public\Common\Oak\Lib\Sh4\Debug

Chain.lib

689,720

16-Mar-2021

11:19

Public\Common\Oak\Lib\Sh4\Debug

Certstor.lib

2,276,506

16-Mar-2021

12:18

Public\Common\Oak\Lib\Sh4\Retail

Chain.lib

629,970

16-Mar-2021

12:18

Public\Common\Oak\Lib\Sh4\Retail

Certstor.lib

1,988,712

16-Mar-2021

11:19

Public\Common\Oak\Lib\X86\Checked

Chain.lib

579,984

16-Mar-2021

11:19

Public\Common\Oak\Lib\X86\Checked

Certstor.lib

2,165,378

16-Mar-2021

11:19

Public\Common\Oak\Lib\X86\Debug

Chain.lib

625,560

16-Mar-2021

11:19

Public\Common\Oak\Lib\X86\Debug

Certstor.lib

2,162,186

16-Mar-2021

13:22

Public\Common\Oak\Lib\X86\Retail

Chain.lib

604,400

16-Mar-2021

13:22

Public\Common\Oak\Lib\X86\Retail

References

Learn about the terminology that Microsoft uses to describe software updates.

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