Applies to:

Microsoft .NET Framework 3.5

The August 8, 2023 update for Windows Server 2012 includes cumulative security and reliability improvements in .NET Framework 3.5. We recommend that you apply this update as part of your regular maintenance routines. Verify that you have installed the required updates listed in the How to get this update section before installing this update.

Summary

Security Improvements

CVE-2023-36899 - .NET Framework Remote Code Execution Vulnerability This security update addresses a vulnerability in applications on IIS using their parent application’s Application Pool which can lead to privilege escalation or other security bypasses. For more information see CVE 2023-36899.

Quality and Reliability Improvements

There are no new Quality and Reliability Improvements in this update.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 5029652 Description of the Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5029652)

Known issues in this update

Microsoft is not currently aware of any issues in this update.

How to get this update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 3.5 installed.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

None. This update will be downloaded and installed automatically from Windows Update.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This individual .NET Framework product update will be installed, as applicable, by applying the operating system update. For more information about operating system updates see additional information about this update section.

Restart requirement

You may need to restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20230808 Security update deployment information: August 8, 2023

Update replacement information

This update replaces previously released updates KB5027541 and KB5028940 and KB5028940.

File Information

File hash information

File name

SHA256 hash

windows8-rt-kb5028967-x64.msu

0A95CC92176780475FD2D02C78F3DF877F04F0EFFB7AD0DE198FD4A81B3601ED

windows8-rt-kb5028967-x86.msu

07E2E6F9B5D20C15F1173860BB2ED2900E0296C0593C1C8CC13AD40201EC0E14

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Big5.nlp

Not applicable

66,728

05-Jul-2023

19:40

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

05-Jul-2023

19:40

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

05-Jul-2023

19:40

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.8974

4,644,864

15-Jul-2023

00:36

x64

None

Not applicable

Normidna.nlp

Not applicable

59,342

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

05-Jul-2023

19:40

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

05-Jul-2023

19:40

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.8974

46,520

15-Jul-2023

00:36

x64

SPN

AMD64_NETFX-ASP

Mscordacwks.dll

2.0.50727.8974

1,760,704

15-Jul-2023

00:36

x64

None

Not applicable

Mscorsvc.dll

2.0.50727.8793

495,232

24-Jul-2018

15:10

x64

None

Not applicable

Mscorwks.dll

2.0.50727.8974

10,626,480

15-Jul-2023

00:36

x64

None

Not applicable

Sos.dll

2.0.50727.8974

489,368

15-Jul-2023

00:36

x64

None

Not applicable

System.configuration.dll

2.0.50727.8953

430,080

03-Sep-2020

13:17

x86

None

Not applicable

System.data.sqlxml.dll

2.0.50727.8773

745,472

01-Dec-2017

13:13

x86

None

Not applicable

System.directoryservices.dll

2.0.50727.8964

401,408

05-Apr-2022

00:12

x86

None

Not applicable

System.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:09

x86

None

Not applicable

System.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:09

x86

None

Not applicable

System.security.dll

2.0.50727.8953

274,432

03-Sep-2020

13:17

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.8974

98,304

15-Jul-2023

00:36

x86

None

Not applicable

System.xml.dll

2.0.50727.8773

2,056,192

01-Dec-2017

13:13

x86

None

Not applicable

System.dll

2.0.50727.8970

3,211,264

05-May-2023

00:33

x86

None

Not applicable

Webengine.dll

2.0.50727.8974

750,000

15-Jul-2023

00:36

x64

None

Not applicable

Wminet_utils.dll

2.0.50727.8766

140,960

12-Jul-2017

13:09

x64

None

Not applicable

System.web.extensions.dll

3.5.30729.8814

1,282,048

02-Nov-2018

13:06

x86

None

Not applicable

Presentationcore.dll

3.0.6920.8955

4,006,400

15-Jul-2023

00:36

x64

None

Not applicable

Presentationfontcache.exe.config

Not applicable

161

05-Jul-2023

19:40

Not applicable

None

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8955

2,259,384

15-Jul-2023

00:36

x64

None

Not applicable

System.data.dll

2.0.50727.8970

3,158,016

11-May-2023

01:35

x64

None

Not applicable

System.printing.dll

3.0.6920.8955

358,400

15-Jul-2023

00:36

x64

None

Not applicable

System.web.dll

2.0.50727.8974

5,300,224

15-Jul-2023

00:36

x64

None

Not applicable

Servicemonikersupport.dll

3.0.4506.8841

30,192

27-Mar-2020

13:11

x64

None

Not applicable

Smdiagnostics.dll

3.0.4506.8841

94,208

27-Mar-2020

13:11

x86

None

Not applicable

Smsvchost.exe

3.0.4506.8841

127,488

27-Mar-2020

13:11

x86

None

Not applicable

System.identitymodel.dll

3.0.4506.8841

405,504

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

847,872

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

847,872

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,337,088

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.washosting.dll

3.0.4506.8841

32,768

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,337,088

27-Mar-2020

13:11

x86

None

Not applicable

Penimc.dll

3.0.6920.8955

89,024

15-Jul-2023

00:36

x64

None

Not applicable

Presentationframework.dll

3.0.6920.8955

4,648,960

15-Jul-2023

00:36

x86

None

Not applicable

Presentationhostdll.dll

3.0.6920.8955

175,544

15-Jul-2023

00:36

x64

None

Not applicable

Reachframework.dll

3.0.6920.8955

536,576

15-Jul-2023

00:36

x86

None

Not applicable

Windowsbase.dll

3.0.6920.8955

1,118,208

15-Jul-2023

00:36

x86

None

Not applicable

System.workflow.activities.dll

3.0.4203.8833

1,060,864

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.componentmodel.dll

3.0.4203.8833

1,531,904

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.runtime.dll

3.0.4203.8833

454,656

07-Dec-2019

02:06

x86

None

Not applicable

Presentationframework.dll

3.0.6920.8955

5,292,032

15-Jul-2023

00:34

x86

None

Not applicable

Reachframework.dll

3.0.6920.8955

536,576

15-Jul-2023

00:34

x86

None

Not applicable

Smdiagnostics.dll

3.0.4506.8841

110,592

27-Mar-2020

13:11

x86

None

Not applicable

Smsvchost.exe

3.0.4506.8841

139,568

27-Mar-2020

13:11

x86

None

Not applicable

System.configuration.dll

2.0.50727.8953

430,080

03-Sep-2020

13:16

x86

None

Not applicable

System.data.sqlxml.dll

2.0.50727.8773

745,472

01-Dec-2017

13:05

x86

None

Not applicable

System.directoryservices.dll

2.0.50727.8964

401,408

05-Apr-2022

00:12

x86

None

Not applicable

System.identitymodel.dll

3.0.4506.8841

446,464

27-Mar-2020

13:11

x86

None

Not applicable

System.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:09

x86

None

Not applicable

System.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:08

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.security.dll

2.0.50727.8953

274,432

03-Sep-2020

13:16

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.washosting.dll

3.0.4506.8841

32,768

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

System.web.extensions.dll

3.5.30729.8814

1,282,048

02-Nov-2018

13:06

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.8974

98,304

15-Jul-2023

00:35

x86

None

Not applicable

System.workflow.activities.dll

3.0.4203.8833

1,142,784

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.componentmodel.dll

3.0.4203.8833

1,638,400

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.runtime.dll

3.0.4203.8833

540,672

07-Dec-2019

02:06

x86

None

Not applicable

System.xml.dll

2.0.50727.8773

2,056,192

01-Dec-2017

13:05

x86

None

Not applicable

System.dll

2.0.50727.8970

3,211,264

16-May-2023

03:26

x86

None

Not applicable

Windowsbase.dll

3.0.6920.8955

1,257,472

15-Jul-2023

00:34

x86

None

Not applicable

Big5.nlp

Not applicable

66,728

05-Jul-2023

19:40

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

05-Jul-2023

19:40

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

05-Jul-2023

19:40

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.8974

4,628,480

15-Jul-2023

00:35

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

05-Jul-2023

19:40

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

05-Jul-2023

19:40

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.8974

34,760

15-Jul-2023

00:35

x86

SPN

X86_NETFX-ASP

Mscordacwks.dll

2.0.50727.8974

993,728

15-Jul-2023

00:35

x86

None

Not applicable

Mscorsvc.dll

2.0.50727.8793

231,992

24-Jul-2018

15:10

x86

None

Not applicable

Mscorwks.dll

2.0.50727.8974

6,414,232

15-Jul-2023

00:35

x86

None

Not applicable

Sos.dll

2.0.50727.8974

393,152

15-Jul-2023

00:35

x86

None

Not applicable

Webengine.dll

2.0.50727.8974

440,760

15-Jul-2023

00:35

x86

None

Not applicable

Wminet_utils.dll

2.0.50727.8766

116,896

12-Jul-2017

13:09

x86

None

Not applicable

System.web.extensions.dll

3.5.30729.8814

1,282,048

02-Nov-2018

13:06

x86

None

Not applicable

Presentationcore.dll

3.0.6920.8955

4,222,976

15-Jul-2023

00:34

x86

None

Not applicable

Presentationfontcache.exe.config

Not applicable

161

05-Jul-2023

19:40

Not applicable

None

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8955

1,741,208

15-Jul-2023

00:34

x86

None

Not applicable

System.data.dll

2.0.50727.8970

2,983,936

16-May-2023

03:26

x86

None

Not applicable

System.printing.dll

3.0.6920.8955

372,736

15-Jul-2023

00:34

x86

None

Not applicable

System.web.dll

2.0.50727.8974

5,292,032

15-Jul-2023

00:35

x86

None

Not applicable

Servicemonikersupport.dll

3.0.4506.8841

28,152

27-Mar-2020

13:11

x86

None

Not applicable

System.identitymodel.dll

3.0.4506.8841

446,464

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

Penimc.dll

3.0.6920.8955

72,128

15-Jul-2023

00:34

x86

None

Not applicable

Presentationframework.dll

3.0.6920.8955

5,292,032

15-Jul-2023

00:34

x86

None

Not applicable

Presentationhostdll.dll

3.0.6920.8955

134,552

15-Jul-2023

00:34

x86

None

Not applicable

Reachframework.dll

3.0.6920.8955

536,576

15-Jul-2023

00:34

x86

None

Not applicable

Windowsbase.dll

3.0.6920.8955

1,257,472

15-Jul-2023

00:34

x86

None

Not applicable

System.workflow.activities.dll

3.0.4203.8833

1,142,784

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.componentmodel.dll

3.0.4203.8833

1,638,400

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.runtime.dll

3.0.4203.8833

540,672

07-Dec-2019

02:06

x86

None

Not applicable

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Presentationframework.dll

3.0.6920.8955

5,292,032

15-Jul-2023

00:34

x86

None

Not applicable

Reachframework.dll

3.0.6920.8955

536,576

15-Jul-2023

00:34

x86

None

Not applicable

Smdiagnostics.dll

3.0.4506.8841

110,592

27-Mar-2020

13:11

x86

None

Not applicable

Smsvchost.exe

3.0.4506.8841

139,568

27-Mar-2020

13:11

x86

None

Not applicable

System.configuration.dll

2.0.50727.8953

430,080

03-Sep-2020

13:16

x86

None

Not applicable

System.data.sqlxml.dll

2.0.50727.8773

745,472

01-Dec-2017

13:05

x86

None

Not applicable

System.directoryservices.dll

2.0.50727.8964

401,408

05-Apr-2022

00:12

x86

None

Not applicable

System.identitymodel.dll

3.0.4506.8841

446,464

27-Mar-2020

13:11

x86

None

Not applicable

System.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:09

x86

None

Not applicable

System.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:08

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.security.dll

2.0.50727.8953

274,432

03-Sep-2020

13:16

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.washosting.dll

3.0.4506.8841

32,768

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

System.web.extensions.dll

3.5.30729.8814

1,282,048

02-Nov-2018

13:06

x86

None

Not applicable

System.web.regularexpressions.dll

2.0.50727.8974

98,304

15-Jul-2023

00:35

x86

None

Not applicable

System.workflow.activities.dll

3.0.4203.8833

1,142,784

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.componentmodel.dll

3.0.4203.8833

1,638,400

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.runtime.dll

3.0.4203.8833

540,672

07-Dec-2019

02:06

x86

None

Not applicable

System.xml.dll

2.0.50727.8773

2,056,192

01-Dec-2017

13:05

x86

None

Not applicable

System.dll

2.0.50727.8970

3,211,264

16-May-2023

03:26

x86

None

Not applicable

Windowsbase.dll

3.0.6920.8955

1,257,472

15-Jul-2023

00:34

x86

None

Not applicable

Big5.nlp

Not applicable

66,728

05-Jul-2023

19:40

Not applicable

None

Not applicable

Bopomofo.nlp

Not applicable

82,172

05-Jul-2023

19:40

Not applicable

None

Not applicable

Ksc.nlp

Not applicable

116,756

05-Jul-2023

19:40

Not applicable

None

Not applicable

Mscorlib.dll

2.0.50727.8974

4,628,480

15-Jul-2023

00:35

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

45,794

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

39,284

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

66,384

05-Jul-2023

19:40

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

60,294

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prc.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Prcp.nlp

Not applicable

83,748

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sortkey.nlp

Not applicable

262,148

05-Jul-2023

19:40

Not applicable

None

Not applicable

Sorttbls.nlp

Not applicable

20,320

05-Jul-2023

19:40

Not applicable

None

Not applicable

Xjis.nlp

Not applicable

28,288

05-Jul-2023

19:40

Not applicable

None

Not applicable

Aspnet_wp.exe

2.0.50727.8974

34,760

15-Jul-2023

00:35

x86

SPN

X86_NETFX-ASP

Mscordacwks.dll

2.0.50727.8974

993,728

15-Jul-2023

00:35

x86

None

Not applicable

Mscorsvc.dll

2.0.50727.8793

231,992

24-Jul-2018

15:10

x86

None

Not applicable

Mscorwks.dll

2.0.50727.8974

6,414,232

15-Jul-2023

00:35

x86

None

Not applicable

Sos.dll

2.0.50727.8974

393,152

15-Jul-2023

00:35

x86

None

Not applicable

Webengine.dll

2.0.50727.8974

440,760

15-Jul-2023

00:35

x86

None

Not applicable

Wminet_utils.dll

2.0.50727.8766

116,896

12-Jul-2017

13:09

x86

None

Not applicable

System.web.extensions.dll

3.5.30729.8814

1,282,048

02-Nov-2018

13:06

x86

None

Not applicable

Presentationcore.dll

3.0.6920.8955

4,222,976

15-Jul-2023

00:34

x86

None

Not applicable

Presentationfontcache.exe.config

Not applicable

161

05-Jul-2023

19:40

Not applicable

None

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8955

1,741,208

15-Jul-2023

00:34

x86

None

Not applicable

System.data.dll

2.0.50727.8970

2,983,936

16-May-2023

03:26

x86

None

Not applicable

System.printing.dll

3.0.6920.8955

372,736

15-Jul-2023

00:34

x86

None

Not applicable

System.web.dll

2.0.50727.8974

5,292,032

15-Jul-2023

00:35

x86

None

Not applicable

Servicemonikersupport.dll

3.0.4506.8841

28,152

27-Mar-2020

13:11

x86

None

Not applicable

System.identitymodel.dll

3.0.4506.8841

446,464

27-Mar-2020

13:11

x86

None

Not applicable

System.runtime.serialization.dll

3.0.4506.8841

970,752

27-Mar-2020

13:11

x86

None

Not applicable

System.servicemodel.dll

3.0.4506.8841

5,996,544

27-Mar-2020

13:11

x86

None

Not applicable

Penimc.dll

3.0.6920.8955

72,128

15-Jul-2023

00:34

x86

None

Not applicable

Presentationframework.dll

3.0.6920.8955

5,292,032

15-Jul-2023

00:34

x86

None

Not applicable

Presentationhostdll.dll

3.0.6920.8955

134,552

15-Jul-2023

00:34

x86

None

Not applicable

Reachframework.dll

3.0.6920.8955

536,576

15-Jul-2023

00:34

x86

None

Not applicable

Windowsbase.dll

3.0.6920.8955

1,257,472

15-Jul-2023

00:34

x86

None

Not applicable

System.workflow.activities.dll

3.0.4203.8833

1,142,784

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.componentmodel.dll

3.0.4203.8833

1,638,400

07-Dec-2019

02:06

x86

None

Not applicable

System.workflow.runtime.dll

3.0.4203.8833

540,672

07-Dec-2019

02:06

x86

None

Not applicable

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