Description of the security update for Office 2013: September 14, 2021 (KB4484108)

Summary

This security update resolves a Microsoft Office spoofing vulnerability. To learn more about the vulnerability, see the Microsoft Common Vulnerabilities and Exposures CVE-2021-38650.

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft Office 2013 installed on the computer.Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2013. It doesn’t apply to the Office 2013 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?)

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 4484108 for the 32-bit version of Office 2013
• Download security update 4484108 for the 64-bit version of Office 2013

More information

Security update deployment information

For deployment information about this update, see Security update deployment information: September 14, 2021 (KB5005848).

Security update replacement information

This security update replaces previously released security update 4018375.

File hash information

File name	SHA256 hash
osfclient2013-kb4484108-fullfile-x86-glb.exe	BFEE23A3325095E4FFE5C36EFBB8E33EF35768EB0F175411AD332E59705C1A27
osfclient2013-kb4484108-fullfile-x64-glb.exe	249BCC60EAD7F6A2BC474334D1B0DE396A3C2B86F5891DE89370733CC7CED72C

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 Office 2013

File identifier	File name	File version	File size	Date	Time
osfintl.dll_1025	osfintl.dll	15.0.5381.1000	253344	18-Aug-21	09:00
osfintl.dll_1026	osfintl.dll	15.0.5381.1000	262040	18-Aug-21	08:21
osfintl.dll_1029	osfintl.dll	15.0.5381.1000	255384	18-Aug-21	09:00
osfintl.dll_1030	osfintl.dll	15.0.5381.1000	254872	18-Aug-21	09:00
osfintl.dll_1031	osfintl.dll	15.0.5381.1000	259480	18-Aug-21	09:00
osfintl.dll_1032	osfintl.dll	15.0.5381.1000	266664	18-Aug-21	09:00
osfintl.dll_3082	osfintl.dll	15.0.5381.1000	257944	18-Aug-21	09:00
osfintl.dll_1061	osfintl.dll	15.0.5381.1000	253336	18-Aug-21	08:21
osfintl.dll_1035	osfintl.dll	15.0.5381.1000	253848	18-Aug-21	09:00
osfintl.dll_1036	osfintl.dll	15.0.5381.1000	261536	18-Aug-21	09:00
osfintl.dll_1037	osfintl.dll	15.0.5381.1000	250776	18-Aug-21	09:00
osfintl.dll_1081	osfintl.dll	15.0.5381.1000	275856	18-Aug-21	09:00
osfintl.dll_1050	osfintl.dll	15.0.5381.1000	256920	18-Aug-21	09:00
osfintl.dll_1038	osfintl.dll	15.0.5381.1000	257944	18-Aug-21	08:21
osfintl.dll_1057	osfintl.dll	15.0.5381.1000	254880	18-Aug-21	08:21
osfintl.dll_1040	osfintl.dll	15.0.5381.1000	256920	18-Aug-21	09:00
osfintl.dll_1041	osfintl.dll	15.0.5381.1000	247192	18-Aug-21	09:00
osfintl.dll_1087	osfintl.dll	15.0.5381.1000	261520	18-Aug-21	09:00
osfintl.dll_1042	osfintl.dll	15.0.5381.1000	244640	18-Aug-21	09:00
osfintl.dll_1063	osfintl.dll	15.0.5381.1000	258456	18-Aug-21	09:00
osfintl.dll_1062	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:00
osfintl.dll_1086	osfintl.dll	15.0.5381.1000	255392	18-Aug-21	08:21
osfintl.dll_1044	osfintl.dll	15.0.5381.1000	252840	18-Aug-21	09:00
osfintl.dll_1043	osfintl.dll	15.0.5381.1000	255896	18-Aug-21	09:00
osfintl.dll_1045	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:00
osfintl.dll_1046	osfintl.dll	15.0.5381.1000	256920	18-Aug-21	09:00
osfintl.dll_2070	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:00
osfintl.dll_1048	osfintl.dll	15.0.5381.1000	258456	18-Aug-21	09:00
osfintl.dll_1049	osfintl.dll	15.0.5381.1000	262568	18-Aug-21	09:00
osfintl.dll_1051	osfintl.dll	15.0.5381.1000	256920	18-Aug-21	08:21
osfintl.dll_1060	osfintl.dll	15.0.5381.1000	254872	18-Aug-21	08:22
osfintl.dll_2074	osfintl.dll	15.0.5381.1000	256408	18-Aug-21	09:00
osfintl.dll_1053	osfintl.dll	15.0.5381.1000	255392	18-Aug-21	09:00
osfintl.dll_1054	osfintl.dll	15.0.5381.1000	257960	18-Aug-21	09:00
osfintl.dll_1055	osfintl.dll	15.0.5381.1000	255904	18-Aug-21	09:00
osfintl.dll_1058	osfintl.dll	15.0.5381.1000	262056	18-Aug-21	09:00
osfintl.dll_1066	osfintl.dll	15.0.5381.1000	256408	18-Aug-21	08:22
osfintl.dll_2052	osfintl.dll	15.0.5381.1000	240024	18-Aug-21	09:00
osfintl.dll_1028	osfintl.dll	15.0.5381.1000	241048	18-Aug-21	09:00
osfintl.dll_1033	osfintl.dll	15.0.5381.1000	238472	17-Aug-21	08:18
msosb.dll	msosb.dll	15.0.4955.1000	68352	17-Aug-21	08:18
msosb.dll.x86	msosb.dll	15.0.4955.1000	68352	17-Aug-21	08:20
msoth.dll	msoth.dll	15.0.5381.1000	97680	17-Aug-21	08:18
msoth.dll.x86	msoth.dll	15.0.5381.1000	97680	17-Aug-21	08:20
osf.dll	osf.dll	15.0.5381.1000	1022344	17-Aug-21	08:18
osfproxy.dll	osfproxy.dll	15.0.5381.1000	31112	17-Aug-21	08:18
osfproxy.dll.x86	osfproxy.dll	15.0.5381.1000	31112	17-Aug-21	08:20
osfroamingproxy.dll	osfroamingproxy.dll	15.0.5381.1000	31120	17-Aug-21	08:18
osfroamingproxy.dll.x86	osfroamingproxy.dll	15.0.5381.1000	31120	17-Aug-21	08:20
osfshared.dll	osfshared.dll	15.0.5337.1000	120232	17-Aug-21	08:18
osfui.dll	osfui.dll	15.0.5345.1000	293272	17-Aug-21	08:18

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For all supported x64-based versions of Office 2013

File identifier	File name	File version	File size	Date	Time
osfintl.dll_1025	osfintl.dll	15.0.5381.1000	253336	18-Aug-21	09:10
osfintl.dll_1026	osfintl.dll	15.0.5381.1000	262040	18-Aug-21	08:30
osfintl.dll_1029	osfintl.dll	15.0.5381.1000	255392	18-Aug-21	09:10
osfintl.dll_1030	osfintl.dll	15.0.5381.1000	254872	18-Aug-21	09:10
osfintl.dll_1031	osfintl.dll	15.0.5381.1000	259480	18-Aug-21	09:10
osfintl.dll_1032	osfintl.dll	15.0.5381.1000	266648	18-Aug-21	09:10
osfintl.dll_3082	osfintl.dll	15.0.5381.1000	257944	18-Aug-21	09:10
osfintl.dll_1061	osfintl.dll	15.0.5381.1000	253328	18-Aug-21	08:30
osfintl.dll_1035	osfintl.dll	15.0.5381.1000	253848	18-Aug-21	09:10
osfintl.dll_1036	osfintl.dll	15.0.5381.1000	261536	18-Aug-21	09:10
osfintl.dll_1037	osfintl.dll	15.0.5381.1000	250776	18-Aug-21	09:10
osfintl.dll_1081	osfintl.dll	15.0.5381.1000	275864	18-Aug-21	09:10
osfintl.dll_1050	osfintl.dll	15.0.5381.1000	256928	18-Aug-21	09:10
osfintl.dll_1038	osfintl.dll	15.0.5381.1000	257960	18-Aug-21	08:30
osfintl.dll_1057	osfintl.dll	15.0.5381.1000	254872	18-Aug-21	08:30
osfintl.dll_1040	osfintl.dll	15.0.5381.1000	256920	18-Aug-21	09:10
osfintl.dll_1041	osfintl.dll	15.0.5381.1000	247192	18-Aug-21	09:10
osfintl.dll_1087	osfintl.dll	15.0.5381.1000	261536	18-Aug-21	09:10
osfintl.dll_1042	osfintl.dll	15.0.5381.1000	244640	18-Aug-21	09:10
osfintl.dll_1063	osfintl.dll	15.0.5381.1000	258456	18-Aug-21	09:10
osfintl.dll_1062	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:10
osfintl.dll_1086	osfintl.dll	15.0.5381.1000	255384	18-Aug-21	08:30
osfintl.dll_1044	osfintl.dll	15.0.5381.1000	252824	18-Aug-21	09:10
osfintl.dll_1043	osfintl.dll	15.0.5381.1000	255912	18-Aug-21	09:10
osfintl.dll_1045	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:10
osfintl.dll_1046	osfintl.dll	15.0.5381.1000	256928	18-Aug-21	09:10
osfintl.dll_2070	osfintl.dll	15.0.5381.1000	257432	18-Aug-21	09:10
osfintl.dll_1048	osfintl.dll	15.0.5381.1000	258464	18-Aug-21	09:10
osfintl.dll_1049	osfintl.dll	15.0.5381.1000	262536	18-Aug-21	09:10
osfintl.dll_1051	osfintl.dll	15.0.5381.1000	256912	18-Aug-21	08:30
osfintl.dll_1060	osfintl.dll	15.0.5381.1000	254888	18-Aug-21	08:30
osfintl.dll_2074	osfintl.dll	15.0.5381.1000	256400	18-Aug-21	09:10
osfintl.dll_1053	osfintl.dll	15.0.5381.1000	255384	18-Aug-21	09:10
osfintl.dll_1054	osfintl.dll	15.0.5381.1000	257952	18-Aug-21	09:10
osfintl.dll_1055	osfintl.dll	15.0.5381.1000	255896	18-Aug-21	09:10
osfintl.dll_1058	osfintl.dll	15.0.5381.1000	262040	18-Aug-21	09:10
osfintl.dll_1066	osfintl.dll	15.0.5381.1000	256408	18-Aug-21	08:30
osfintl.dll_2052	osfintl.dll	15.0.5381.1000	240016	18-Aug-21	09:10
osfintl.dll_1028	osfintl.dll	15.0.5381.1000	241048	18-Aug-21	09:10
osfintl.dll_1033	osfintl.dll	15.0.5381.1000	238504	17-Aug-21	08:18
msosb.dll	msosb.dll	15.0.4955.1000	90368	17-Aug-21	08:18
msoth.dll	msoth.dll	15.0.5381.1000	134552	17-Aug-21	08:18
osf.dll	osf.dll	15.0.5381.1000	1523608	17-Aug-21	08:18
osfproxy.dll	osfproxy.dll	15.0.5381.1000	37784	17-Aug-21	08:18
osfroamingproxy.dll	osfroamingproxy.dll	15.0.5381.1000	37776	17-Aug-21	08:18
osfshared.dll	osfshared.dll	15.0.5337.1000	184728	17-Aug-21	08:18
osfui.dll	osfui.dll	15.0.5345.1000	449440	17-Aug-21	08:18
msosb.dll	msosb.dll	15.0.4955.1000	68352	17-Aug-21	08:18
msosb.dll.x86	msosb.dll	15.0.4955.1000	68352	17-Aug-21	08:20
msoth.dll	msoth.dll	15.0.5381.1000	97680	17-Aug-21	08:18
msoth.dll.x86	msoth.dll	15.0.5381.1000	97680	17-Aug-21	08:20
osfproxy.dll	osfproxy.dll	15.0.5381.1000	31112	17-Aug-21	08:18
osfproxy.dll.x86	osfproxy.dll	15.0.5381.1000	31112	17-Aug-21	08:20
osfroamingproxy.dll	osfroamingproxy.dll	15.0.5381.1000	31120	17-Aug-21	08:18
osfroamingproxy.dll.x86	osfroamingproxy.dll	15.0.5381.1000	31120	17-Aug-21	08:20

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