7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
04/13/2021
High
Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, obtain sensitive information, cause denial of service.
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2013 RT Service Pack 1
Microsoft Office 2016 (32-bit edition)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Office Online Server
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Outlook 2016 (64-bit edition)
Microsoft Outlook 2013 RT Service Pack 1
Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Excel 2016 (64-bit edition)
Microsoft SharePoint Server 2010 Service Pack 2
Microsoft SharePoint Enterprise Server 2016
Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
Microsoft SharePoint Server 2019
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2016 (64-bit edition)
Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Office 2013 RT Service Pack 1
Microsoft Word 2016 (64-bit edition)
Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
Microsoft Excel 2016 (32-bit edition)
Microsoft Office 2019 for Mac
Microsoft Excel 2013 RT Service Pack 1
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2019 for 64-bit editions
Microsoft Outlook 2016 (32-bit edition)
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)
CVE-2021-28454
CVE-2021-28449
CVE-2021-28456
CVE-2021-28451
CVE-2021-28453
CVE-2021-28450
CVE-2021-28452
ACE
CVE-2021-284547.8Critical
CVE-2021-284497.8Critical
CVE-2021-284565.5High
CVE-2021-284517.8Critical
CVE-2021-284537.8Critical
CVE-2021-284505.0Warning
CVE-2021-284527.1High
4504719
4493215
4504729
4504733
3178643
3178639
4504735
4493198
4493201
4504722
4504709
4493218
4504727
4493208
4504716
4504701
4504714
4504739
4504738
4504712
4504724
3017810
2589361
4493185
4504723
4504726
2553491
4504705
4504715
4504721
4493170
support.microsoft.com/kb/2553491
support.microsoft.com/kb/2589361
support.microsoft.com/kb/3017810
support.microsoft.com/kb/3178639
support.microsoft.com/kb/3178643
support.microsoft.com/kb/4493170
support.microsoft.com/kb/4493185
support.microsoft.com/kb/4493198
support.microsoft.com/kb/4493201
support.microsoft.com/kb/4493208
support.microsoft.com/kb/4493215
support.microsoft.com/kb/4493218
support.microsoft.com/kb/4504701
support.microsoft.com/kb/4504705
support.microsoft.com/kb/4504709
support.microsoft.com/kb/4504712
support.microsoft.com/kb/4504714
support.microsoft.com/kb/4504715
support.microsoft.com/kb/4504716
support.microsoft.com/kb/4504719
support.microsoft.com/kb/4504721
support.microsoft.com/kb/4504722
support.microsoft.com/kb/4504723
support.microsoft.com/kb/4504724
support.microsoft.com/kb/4504726
support.microsoft.com/kb/4504727
support.microsoft.com/kb/4504729
support.microsoft.com/kb/4504733
support.microsoft.com/kb/4504735
support.microsoft.com/kb/4504738
support.microsoft.com/kb/4504739
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28449
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28450
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28451
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28452
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28453
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28454
api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-28456
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28449
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28450
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28451
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28452
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28453
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28454
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28456
portal.msrc.microsoft.com/en-us/security-guidance
statistics.securelist.com/vulnerability-scan/month
threats.kaspersky.com/en/product/Microsoft-Excel/
threats.kaspersky.com/en/product/Microsoft-Office/
threats.kaspersky.com/en/product/Microsoft-Outlook/
threats.kaspersky.com/en/product/Microsoft-Word/
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P