Applies to:

Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0

Summary

Denial of service vulnerabilities exist when .NET Framework improperly handles objects in heap memory, or when .NET Framework and .NET Core improperly process RegEx strings.

To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Important

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Additional information about this update

For more information about this update as it relates to its particular Windows version(s), see the following article(s) in the Microsoft Knowledge Base:

  • 4498964 Security Only Update for .NET Framework 2.0, 3.0, 4.5.2, 4.6, 4.8 for Windows Server 2008 SP2 (KB4498964)

How to obtain and install the update

Method 1: Microsoft Update Catalog

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

Method 2: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then select Action.

  3. Select Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4498964 into the Search box, and then select Search.

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.

  7. After you select all the packages that you require, select View Basket.

  8. To import the packages to your WSUS server, select Import.

  9. After the packages are imported, select Close to return to WSUS.

The updates are now available for installation through WSUS.

Update deployment information

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

20190514 Security update deployment information: May 14, 2019

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces previously released update 4481487.

File information

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 the times for these files are listed in Coordinated Universal Time (UTC). The dates and the 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 the times may change when you perform certain operations on the files.

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File information

File hash information

File name

SHA1 hash

SHA256 hash

Windows6.0-KB4495609-ia64.msu

9402BC5D85E27C5BA48C123A06BE234F958BD215

1FE4B41D35254061F3C8DF5B9C26ED1C7628EE5E937141B6C7EFB79CF094CB4F

Windows6.0-KB4495609-x64.msu

C8E4ABD64CA5E3672E696CD8CFC16154B734DD3D

64438E5BBE72A1BF0C68C7545CA21EBDCEB988FE085103E63D58577EA203B0F3

Windows6.0-KB4495609-x86.msu

E0411780906ECEB693EFDC9512BB7DFA47D9609C

97CF9F241D57531AAD99C425E6B9C56F4C08E834498C875BFDC69B58258B9954

For all supported x64-based versions

File name

File version

File size

Date

Time

big5.nlp

66,728

18-Oct-2018

23:19

bopomofo.nlp

82,172

18-Oct-2018

23:19

ksc.nlp

116,756

18-Oct-2018

23:19

mscorlib.dll

2.0.50727.8806

4,575,232

29-Mar-2019

13:07

normidna.nlp

59,342

18-Oct-2018

23:20

normnfc.nlp

45,794

18-Oct-2018

23:20

normnfd.nlp

39,284

18-Oct-2018

23:20

normnfkc.nlp

66,384

18-Oct-2018

23:20

normnfkd.nlp

60,294

18-Oct-2018

23:20

prc.nlp

83,748

18-Oct-2018

23:20

prcp.nlp

83,748

18-Oct-2018

23:20

sortkey.nlp

262,148

18-Oct-2018

23:20

sorttbls.nlp

20,320

18-Oct-2018

23:20

xjis.nlp

28,288

18-Oct-2018

23:20

mscordacwks.dll

2.0.50727.8806

1,757,336

29-Mar-2019

13:07

mscorwks.dll

2.0.50727.8806

10,007,192

29-Mar-2019

13:07

sos.dll

2.0.50727.8806

486,040

29-Mar-2019

13:07

system.dll

2.0.50727.8806

3,211,264

29-Mar-2019

13:07

mscorlib.resources.dll

2.0.50727.4016

352,256

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

303,104

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

315,392

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

425,984

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

307,200

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

311,296

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

331,776

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

315,392

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

307,200

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

348,160

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

319,488

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

290,816

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

303,104

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

311,296

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

303,104

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

307,200

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

397,312

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

241,664

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

204,800

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

294,912

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

221,184

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

217,088

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

204,800

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

233,472

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

217,088

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

196,608

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

266,240

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:48

system.dll

2.0.50727.8806

3,211,264

29-Mar-2019

13:06

big5.nlp

66,728

16-Nov-2017

03:47

bopomofo.nlp

82,172

16-Nov-2017

03:47

ksc.nlp

116,756

16-Nov-2017

03:47

mscorlib.dll

2.0.50727.8806

4,558,848

29-Mar-2019

13:06

normidna.nlp

59,342

16-Nov-2017

03:47

normnfc.nlp

45,794

16-Nov-2017

03:47

normnfd.nlp

39,284

16-Nov-2017

03:47

normnfkc.nlp

66,384

16-Nov-2017

03:47

normnfkd.nlp

60,294

16-Nov-2017

03:47

prc.nlp

83,748

16-Nov-2017

03:47

prcp.nlp

83,748

16-Nov-2017

03:47

sortkey.nlp

262,148

16-Nov-2017

03:47

sorttbls.nlp

20,320

16-Nov-2017

03:47

xjis.nlp

28,288

16-Nov-2017

03:47

mscordacwks.dll

2.0.50727.8806

990,360

29-Mar-2019

13:06

mscorwks.dll

2.0.50727.8806

5,947,032

29-Mar-2019

13:06

sos.dll

2.0.50727.8806

389,784

29-Mar-2019

13:06

For all supported x86-based versions

File name

File version

File size

Date

Time

mscorlib.resources.dll

2.0.50727.4016

352,256

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

303,104

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

315,392

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

425,984

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

307,200

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

311,296

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

331,776

18-Oct-2018

23:19

mscorlib.resources.dll

2.0.50727.4016

315,392

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

307,200

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

348,160

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

319,488

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

290,816

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

303,104

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

311,296

18-Oct-2018

23:20

mscorlib.resources.dll

2.0.50727.4016

303,104

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

307,200

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

397,312

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

299,008

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:48

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

241,664

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

204,800

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

294,912

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

221,184

18-Oct-2018

23:19

system.resources.dll

2.0.50727.4016

217,088

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

204,800

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

233,472

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

217,088

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

196,608

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

208,896

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

208,896

18-Oct-2018

23:20

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

208,896

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

266,240

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

200,704

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:48

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:48

system.dll

2.0.50727.8806

3,211,264

29-Mar-2019

13:06

big5.nlp

66,728

16-Nov-2017

03:47

bopomofo.nlp

82,172

16-Nov-2017

03:47

ksc.nlp

116,756

16-Nov-2017

03:47

mscorlib.dll

2.0.50727.8806

4,558,848

29-Mar-2019

13:06

normidna.nlp

59,342

16-Nov-2017

03:47

normnfc.nlp

45,794

16-Nov-2017

03:47

normnfd.nlp

39,284

16-Nov-2017

03:47

normnfkc.nlp

66,384

16-Nov-2017

03:47

normnfkd.nlp

60,294

16-Nov-2017

03:47

prc.nlp

83,748

16-Nov-2017

03:47

prcp.nlp

83,748

16-Nov-2017

03:47

sortkey.nlp

262,148

16-Nov-2017

03:47

sorttbls.nlp

20,320

16-Nov-2017

03:47

xjis.nlp

28,288

16-Nov-2017

03:47

mscordacwks.dll

2.0.50727.8806

990,360

29-Mar-2019

13:06

mscorwks.dll

2.0.50727.8806

5,947,032

29-Mar-2019

13:06

sos.dll

2.0.50727.8806

389,784

29-Mar-2019

13:06

For all supported ia64-based versions

File name

File version

File size

Date

Time

big5.nlp

66,728

16-Nov-2017

03:20

bopomofo.nlp

82,172

16-Nov-2017

03:20

ksc.nlp

116,756

16-Nov-2017

03:20

mscorlib.dll

2.0.50727.8806

4,018,176

29-Mar-2019

13:06

normidna.nlp

59,342

16-Nov-2017

03:20

normnfc.nlp

45,794

16-Nov-2017

03:20

normnfd.nlp

39,284

16-Nov-2017

03:20

normnfkc.nlp

66,384

16-Nov-2017

03:20

normnfkd.nlp

60,294

16-Nov-2017

03:20

prc.nlp

83,748

16-Nov-2017

03:20

prcp.nlp

83,748

16-Nov-2017

03:20

sortkey.nlp

262,148

16-Nov-2017

03:20

sorttbls.nlp

20,320

16-Nov-2017

03:20

xjis.nlp

28,288

16-Nov-2017

03:20

mscordacwks.dll

2.0.50727.8806

3,083,416

29-Mar-2019

13:06

mscorwks.dll

2.0.50727.8806

20,404,888

29-Mar-2019

13:06

sos.dll

2.0.50727.8806

873,624

29-Mar-2019

13:06

system.dll

2.0.50727.8806

3,211,264

29-Mar-2019

13:06

mscorlib.resources.dll

2.0.50727.4016

315,392

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

311,296

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

348,160

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

319,488

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:47

mscorlib.resources.dll

2.0.50727.4016

278,528

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

212,992

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

233,472

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

217,088

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:47

system.resources.dll

2.0.50727.4016

184,320

16-Nov-2017

03:47

system.dll

2.0.50727.8806

3,211,264

29-Mar-2019

13:06

big5.nlp

66,728

16-Nov-2017

03:47

bopomofo.nlp

82,172

16-Nov-2017

03:47

ksc.nlp

116,756

16-Nov-2017

03:47

mscorlib.dll

2.0.50727.8806

4,558,848

29-Mar-2019

13:06

normidna.nlp

59,342

16-Nov-2017

03:47

normnfc.nlp

45,794

16-Nov-2017

03:47

normnfd.nlp

39,284

16-Nov-2017

03:47

normnfkc.nlp

66,384

16-Nov-2017

03:47

normnfkd.nlp

60,294

16-Nov-2017

03:47

prc.nlp

83,748

16-Nov-2017

03:47

prcp.nlp

83,748

16-Nov-2017

03:47

sortkey.nlp

262,148

16-Nov-2017

03:47

sorttbls.nlp

20,320

16-Nov-2017

03:47

xjis.nlp

28,288

16-Nov-2017

03:47

mscordacwks.dll

2.0.50727.8806

990,360

29-Mar-2019

13:06

mscorwks.dll

2.0.50727.8806

5,947,032

29-Mar-2019

13:06

sos.dll

2.0.50727.8806

389,784

29-Mar-2019

13:06

Information about protection and security

需要更多協助?

擴展您的技能
探索訓練
優先取得新功能
加入 Microsoft 測試人員

這項資訊有幫助嗎?

以下何者是您會在意的事項?

感謝您的意見反應!

×