Microsoft: >> Office Web Apps Server >> 2013 Security Vulnerabilities
Microsoft Excel Remote Code Execution Vulnerability
CVSS Score
7.8
EPSS Score
0.018
Published
2021-01-12
Microsoft Word Remote Code Execution Vulnerability
CVSS Score
7.8
EPSS Score
0.021
Published
2021-01-12
Microsoft Word Remote Code Execution Vulnerability
CVSS Score
7.8
EPSS Score
0.034
Published
2021-01-12
A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. The file could then take actions on behalf of the logged-on user with the same permissions as the current user.
To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Word software.
Two possible email attack scenarios exist for this vulnerability:
• With the first email attack scenario, an attacker could send a specially crafted email message to the user and wait for the user to click on the message. When the message renders via Microsoft Word in the Outlook Preview Pane, an attack could be triggered.
• With the second scenario, an attacker could attach a specially crafted file to an email, send it to a user, and convince them to open it.
In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or other message, and then convince the user to open the specially crafted file.
The security update addresses the vulnerability by correcting how Microsoft Word handles files in memory.
For users who view their emails in Outlook, the Preview Pane attack vector can be mitigated by disabling this feature. The following registry keys can be set to disable the Preview Pane in Outlook on Windows, either via manual editing of the registry or by modifying Group Policy.
Note Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or view the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe.
Outlook 2010:
HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Options
DWORD: DisableReadingPane
Value: 1
Outlook 2013:
HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Options
DWORD: DisableReadingPane
Value: 1
Outlook 2016, Outlook 2019, and Office 365 ProPlus:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Options
DWORD: DisableReadingPane
Value: 1
CVSS Score
7.8
EPSS Score
0.124
Published
2019-08-14
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.
CVSS Score
7.8
EPSS Score
0.194
Published
2018-11-14
Microsoft Office 2010 SP2, 2013 SP1, and 2016, Microsoft Office 2016 Click-to-Run Microsoft Office 2016 for Mac, Microsoft Office Web Apps 2010 SP2, Microsoft Office Web Apps 2013 SP1, Microsoft SharePoint Enterprise Server 2013 SP1, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2010 SP2, Microsoft Word 2010 SP2, Word 2013 SP1 and Microsoft Word 2016 allow an information disclosure vulnerability due to how variables are initialized, aka "Microsoft Office Information Disclosure Vulnerability".
CVSS Score
3.3
EPSS Score
0.049
Published
2018-03-14
Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way RTF content is handled, aka "Microsoft Word Memory Corruption Vulnerability".
CVSS Score
7.8
EPSS Score
0.418
Published
2018-01-10
CVE-2017-11826
Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.
Known exploited
CVSS Score
7.8
EPSS Score
0.897
Published
2017-10-13
A remote code execution vulnerability exists in Microsoft PowerPoint 2007 Service Pack 3, Microsoft PowerPoint 2010 Service Pack 2, Microsoft PowerPoint 2013 Service Pack 1, Microsoft PowerPoint 2013 RT Service Pack 1, Microsoft PowerPoint 2016, Microsoft PowerPoint Viewer 2007, Microsoft SharePoint Server 2013 Service Pack 1, Microsoft SharePoint Enterprise Server 2016, Microsoft Office Web Apps 2010 Service Pack 2, and Microsoft Office Compatibility Pack Service Pack 3 when they fail to properly handle objects in memory, aka "PowerPoint Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8743.
CVSS Score
7.8
EPSS Score
0.277
Published
2017-09-13
A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8510, CVE-2017-8511, CVE-2017-8512, CVE-2017-0260, and CVE-2017-8506.
CVSS Score
8.8
EPSS Score
0.071
Published
2017-06-15