Description of the security update for Word 2016: April 13, 2021 (KB4493198)

Summary

This security update resolves a Microsoft Word remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-28453.

**Note:**To apply this security update, you must have the release version of Microsoft Office 2016 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn’t apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home (see What version of Office am I using?).

Improvements and fixes

Group Policy templates have been updated for Office applications. This update enables Word to support the new templates. After you install this update, the following settings are turned on by default:

• Stop checking for table alt text accessibility information
• Stop checking to ensure hyperlink text is meaningful
• Stop checking to ensure hyperlink text extension is meaningful if they include extensions
• Stop checking for blank table rows and columns
• Stop checking to ensure headings are succinct
• Stop checking whether blank characters are used for formatting
• Stop checking for image watermarks
• Stop checking to ensure styles have been used frequently
• Stop checking to ensure heading styles do not skip style level

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

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

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

• Download security update 4493198 for the 32-bit version of Word 2016
• Download security update 4493198 for the 64-bit version of Word 2016

More information

Security update deployment information

For deployment information about this update, see Security update deployment information: April 13, 2021.

Security update replacement information

This security update replaces previously released security update 4493156.

File hash information

File name	SHA1 hash	SHA256 hash
word2016-kb4493198-fullfile-x86-glb.exe	D56475AC15B7CF99D75BD922F53AE83E75E4401C	DAFFA6B5F49F8AF982FA84D2BF2378A408DA9D5B14571A03721A1867863A4F9E
word2016-kb4493198-fullfile-x64-glb.exe	15EC3948335DD395456CF39299CEEDDC1EA25985	753CC0472E503F71D58F94E1D87CFE7505C2A5638894EECC183B8A241326FDC5

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following table. 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.

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For all supported x86-based versions of Word 2016

File identifier	File name	File version	File size	Date	Time
genko.dll	genko.dll	16.0.5032.1000	402264	16-Mar-21	06:36
wwintl.dll_1025	wwintl.dll	16.0.4936.1000	823584	23-Mar-21	07:15
wwintl.dll_1026	wwintl.dll	16.0.4936.1000	820504	23-Mar-21	07:15
wwintl.dll_1029	wwintl.dll	16.0.4936.1000	876320	23-Mar-21	07:15
wwintl.dll_1030	wwintl.dll	16.0.4936.1000	807712	23-Mar-21	07:15
wwintl.dll_1031	wwintl.dll	16.0.4936.1000	888088	23-Mar-21	07:15
wwintl.dll_1032	wwintl.dll	16.0.4936.1000	877856	23-Mar-21	07:15
wwintl.dll_3082	wwintl.dll	16.0.4936.1000	847648	23-Mar-21	07:15
wwintl.dll_1061	wwintl.dll	16.0.4936.1000	770840	23-Mar-21	07:15
wwintl.dll_1035	wwintl.dll	16.0.4936.1000	818464	23-Mar-21	07:16
wwintl.dll_1036	wwintl.dll	16.0.4936.1000	883992	23-Mar-21	07:16
wwintl.dll_1037	wwintl.dll	16.0.4936.1000	762144	23-Mar-21	07:16
wwintl.dll_1081	wwintl.dll	16.0.4936.1000	865056	23-Mar-21	07:16
wwintl.dll_1050	wwintl.dll	16.0.4936.1000	830744	23-Mar-21	07:16
wwintl.dll_1038	wwintl.dll	16.0.4936.1000	886560	23-Mar-21	07:16
wwintl.dll_1057	wwintl.dll	16.0.4936.1000	779040	23-Mar-21	07:16
wwintl.dll_1040	wwintl.dll	16.0.4936.1000	838424	23-Mar-21	07:16
wwintl.dll_1041	wwintl.dll	16.0.4936.1000	790304	23-Mar-21	07:15
wwintl.dll_1087	wwintl.dll	16.0.4936.1000	880408	23-Mar-21	07:16
wwintl.dll_1042	wwintl.dll	16.0.4936.1000	783136	23-Mar-21	07:16
wwintl.dll_1063	wwintl.dll	16.0.4936.1000	836896	23-Mar-21	07:16
wwintl.dll_1062	wwintl.dll	16.0.4936.1000	824608	23-Mar-21	07:16
wwintl.dll_1086	wwintl.dll	16.0.4936.1000	782616	23-Mar-21	07:16
wwintl.dll_1044	wwintl.dll	16.0.4936.1000	797168	23-Mar-21	07:16
wwintl.dll_1043	wwintl.dll	16.0.4936.1000	835872	23-Mar-21	07:16
wwintl.dll_1045	wwintl.dll	16.0.4936.1000	852256	23-Mar-21	07:16
wwintl.dll_1046	wwintl.dll	16.0.4936.1000	853280	23-Mar-21	07:16
wwintl.dll_2070	wwintl.dll	16.0.4936.1000	861464	23-Mar-21	07:16
wwintl.dll_1048	wwintl.dll	16.0.4936.1000	896280	23-Mar-21	07:16
wwintl.dll_1049	wwintl.dll	16.0.4936.1000	809968	23-Mar-21	07:16
wwintl.dll_1051	wwintl.dll	16.0.4936.1000	891160	23-Mar-21	07:16
wwintl.dll_1060	wwintl.dll	16.0.4936.1000	821768	23-Mar-21	07:16
wwintl.dll_2074	wwintl.dll	16.0.4936.1000	817944	23-Mar-21	07:16
wwintl.dll_9242	wwintl.dll	16.0.4936.1000	817952	23-Mar-21	07:16
wwintl.dll_1053	wwintl.dll	16.0.4936.1000	803616	23-Mar-21	07:16
wwintl.dll_1054	wwintl.dll	16.0.4936.1000	825112	23-Mar-21	07:16
wwintl.dll_1055	wwintl.dll	16.0.4936.1000	881952	23-Mar-21	07:16
wwintl.dll_1058	wwintl.dll	16.0.4936.1000	820000	23-Mar-21	07:16
wwintl.dll_1066	wwintl.dll	16.0.4936.1000	912672	23-Mar-21	07:16
wwintl.dll_2052	wwintl.dll	16.0.4936.1000	697120	23-Mar-21	07:16
wwintl.dll_1028	wwintl.dll	16.0.4936.1000	706240	23-Mar-21	07:16
jrpcard20.dll_1041	jrpcard20.dll	16.0.4834.1000	330960	16-Mar-21	06:36
pdfreflow.exe	pdfreflow.exe	16.0.5140.1000	10306344	16-Mar-21	06:34
wwintl.dll_1033	wwintl.dll	16.0.4936.1000	701152	16-Mar-21	06:33
msword.olb	msword.olb		939304	16-Mar-21	06:34
winword.exe	winword.exe	16.0.5149.1000	1937232	24-Mar-21	12:00
wrd12cnv.dll	wordcnv.dll	16.0.5149.1000	9135432	24-Mar-21	12:00
wwlib.dll	wwlib.dll	16.0.5149.1000	28916560	24-Mar-21	12:00

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For all supported x64-based versions of Word 2016

File identifier	File name	File version	File size	Date	Time
calligra.dll	calligra.dll	16.0.4528.1000	338688	23-Mar-21	07:33
genko.dll	genko.dll	16.0.5032.1000	513368	16-Mar-21	06:39
wdsrv.conversion.word.wwintl.dll_1025	wwintl.dll	16.0.5149.1000	944400	23-Mar-21	11:56
wwintl.dll_1025	wwintl.dll	16.0.5149.1000	944400	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1026	wwintl.dll	16.0.5149.1000	899352	23-Mar-21	11:56
wwintl.dll_1026	wwintl.dll	16.0.5149.1000	899352	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1029	wwintl.dll	16.0.5149.1000	955680	23-Mar-21	11:56
wwintl.dll_1029	wwintl.dll	16.0.5149.1000	955680	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1030	wwintl.dll	16.0.5149.1000	886560	23-Mar-21	11:56
wwintl.dll_1030	wwintl.dll	16.0.5149.1000	886560	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1031	wwintl.dll	16.0.5149.1000	966936	23-Mar-21	11:56
wwintl.dll_1031	wwintl.dll	16.0.5149.1000	966936	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1032	wwintl.dll	16.0.5149.1000	956696	23-Mar-21	11:56
wwintl.dll_1032	wwintl.dll	16.0.5149.1000	956696	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_3082	wwintl.dll	16.0.5149.1000	926512	23-Mar-21	11:56
wwintl.dll_3082	wwintl.dll	16.0.5149.1000	926512	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1061	wwintl.dll	16.0.5149.1000	849688	23-Mar-21	11:56
wwintl.dll_1061	wwintl.dll	16.0.5149.1000	849688	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1035	wwintl.dll	16.0.5149.1000	897304	23-Mar-21	11:56
wwintl.dll_1035	wwintl.dll	16.0.5149.1000	897304	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1036	wwintl.dll	16.0.5149.1000	962840	23-Mar-21	11:56
wwintl.dll_1036	wwintl.dll	16.0.5149.1000	962840	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1037	wwintl.dll	16.0.5149.1000	882968	23-Mar-21	11:56
wwintl.dll_1037	wwintl.dll	16.0.5149.1000	882968	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1081	wwintl.dll	16.0.5149.1000	944408	23-Mar-21	11:56
wwintl.dll_1081	wwintl.dll	16.0.5149.1000	944408	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1050	wwintl.dll	16.0.5149.1000	909592	23-Mar-21	11:56
wwintl.dll_1050	wwintl.dll	16.0.5149.1000	909592	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1038	wwintl.dll	16.0.5149.1000	965424	23-Mar-21	11:56
wwintl.dll_1038	wwintl.dll	16.0.5149.1000	965424	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1057	wwintl.dll	16.0.5149.1000	857888	23-Mar-21	11:56
wwintl.dll_1057	wwintl.dll	16.0.5149.1000	857888	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1040	wwintl.dll	16.0.5149.1000	917272	23-Mar-21	11:56
wwintl.dll_1040	wwintl.dll	16.0.5149.1000	917272	23-Mar-21	11:56
wac.word.wwintl.dll_1041	wwintl.dll	16.0.5149.1000	869144
wdsrv.conversion.word.wwintl.dll_1041	wwintl.dll	16.0.5149.1000	869144	23-Mar-21	11:56
wwintl.dll_1041	wwintl.dll	16.0.5149.1000	869144	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1087	wwintl.dll	16.0.5149.1000	959776	23-Mar-21	11:56
wwintl.dll_1087	wwintl.dll	16.0.5149.1000	959776	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1042	wwintl.dll	16.0.5149.1000	862488	23-Mar-21	11:56
wwintl.dll_1042	wwintl.dll	16.0.5149.1000	862488	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1063	wwintl.dll	16.0.5149.1000	916256	23-Mar-21	11:56
wwintl.dll_1063	wwintl.dll	16.0.5149.1000	916256	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1062	wwintl.dll	16.0.5149.1000	903448	23-Mar-21	11:56
wwintl.dll_1062	wwintl.dll	16.0.5149.1000	903448	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1086	wwintl.dll	16.0.5149.1000	861976	23-Mar-21	11:56
wwintl.dll_1086	wwintl.dll	16.0.5149.1000	861976	23-Mar-21	11:56
wdsrv.conversion.word.wwintl.dll_1044	wwintl.dll	16.0.5149.1000	875792	23-Mar-21	11:57
wwintl.dll_1044	wwintl.dll	16.0.5149.1000	875792	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1043	wwintl.dll	16.0.5149.1000	915232	23-Mar-21	11:57
wwintl.dll_1043	wwintl.dll	16.0.5149.1000	915232	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1045	wwintl.dll	16.0.5149.1000	931608	23-Mar-21	11:57
wwintl.dll_1045	wwintl.dll	16.0.5149.1000	931608	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1046	wwintl.dll	16.0.5149.1000	932624	23-Mar-21	11:57
wwintl.dll_1046	wwintl.dll	16.0.5149.1000	932624	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_2070	wwintl.dll	16.0.5149.1000	940320	23-Mar-21	11:57
wwintl.dll_2070	wwintl.dll	16.0.5149.1000	940320	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1048	wwintl.dll	16.0.5149.1000	975640	23-Mar-21	11:57
wwintl.dll_1048	wwintl.dll	16.0.5149.1000	975640	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1049	wwintl.dll	16.0.5149.1000	888600	23-Mar-21	11:57
wwintl.dll_1049	wwintl.dll	16.0.5149.1000	888600	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1051	wwintl.dll	16.0.5149.1000	970528	23-Mar-21	11:57
wwintl.dll_1051	wwintl.dll	16.0.5149.1000	970528	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1060	wwintl.dll	16.0.5149.1000	900384	23-Mar-21	11:57
wwintl.dll_1060	wwintl.dll	16.0.5149.1000	900384	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_2074	wwintl.dll	16.0.5149.1000	896792	23-Mar-21	11:57
wwintl.dll_2074	wwintl.dll	16.0.5149.1000	896792	23-Mar-21	11:57
wac.word.wwintl.dll_9242	wwintl.dll	16.0.5149.1000	896792
wdsrv.conversion.word.wwintl.dll_9242	wwintl.dll	16.0.5149.1000	896792	23-Mar-21	11:57
wwintl.dll_9242	wwintl.dll	16.0.5149.1000	896792	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1053	wwintl.dll	16.0.5149.1000	882456	23-Mar-21	11:57
wwintl.dll_1053	wwintl.dll	16.0.5149.1000	882456	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1054	wwintl.dll	16.0.5149.1000	903968	23-Mar-21	11:57
wwintl.dll_1054	wwintl.dll	16.0.5149.1000	903968	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1055	wwintl.dll	16.0.5149.1000	960792	23-Mar-21	11:57
wwintl.dll_1055	wwintl.dll	16.0.5149.1000	960792	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1058	wwintl.dll	16.0.5149.1000	898848	23-Mar-21	11:57
wwintl.dll_1058	wwintl.dll	16.0.5149.1000	898848	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1066	wwintl.dll	16.0.5149.1000	992024	23-Mar-21	11:57
wwintl.dll_1066	wwintl.dll	16.0.5149.1000	992024	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_2052	wwintl.dll	16.0.5149.1000	775968	23-Mar-21	11:57
wwintl.dll_2052	wwintl.dll	16.0.5149.1000	775968	23-Mar-21	11:57
wdsrv.conversion.word.wwintl.dll_1028	wwintl.dll	16.0.5149.1000	784672	23-Mar-21	11:57
wwintl.dll_1028	wwintl.dll	16.0.5149.1000	784672	23-Mar-21	11:57
jrpcard20.dll_1041	jrpcard20.dll	16.0.4834.1000	331168	16-Mar-21	06:39
pdfreflow.exe	pdfreflow.exe	16.0.5140.1000	15919968	16-Mar-21	06:38
wac.word.wwintl.dll_1033	wwintl.dll	16.0.4936.1000	780488
wdsrv.conversion.word.wwintl.dll_1033	wwintl.dll	16.0.4936.1000	780488	16-Mar-21	06:33
wwintl.dll_1033	wwintl.dll	16.0.4936.1000	780488	16-Mar-21	06:33
msword.olb	msword.olb		939304	16-Mar-21	06:38
winword.exe	winword.exe	16.0.5149.1000	1940784	23-Mar-21	11:59
wrd12cnv.dll	wordcnv.dll	16.0.5149.1000	11890456	23-Mar-21	11:59
wwlib.dll	wwlib.dll	16.0.5149.1000	37252416	23-Mar-21	11:59

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