7.8High

CVE-2021-1716Microsoft Word Remote Code Execution Vulnerability

Microsoft Microsoft Office Web Apps Server 2013 Service Pack 1; Microsoft Microsoft SharePoint Enterprise Server 2016; Microsoft Microsoft SharePoint Enterpris… Published: 2021-01-12 22:42 (5 years ago)

Description

Microsoft Word Remote Code Execution Vulnerability

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
microsoft	365 apps	—
microsoft	excel	2010
Microsoft	Microsoft 365 Apps for Enterprise	16.0.1 – < https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office 2010 Service Pack 2	13.0.0.0 – < publication
Microsoft	Microsoft Office 2019	19.0.0 – < https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office 2019 for Mac	16.0.0 – < publication
Microsoft	Microsoft Office Online Server	16.0.1 – < publication
Microsoft	Microsoft Office Web Apps 2010 Service Pack 2	13.0.0 – < publication
Microsoft	Microsoft Office Web Apps Server 2013 Service Pack 1	15.0.1 – < publication
Microsoft	Microsoft SharePoint Enterprise Server 2013 Service Pack 1	15.0.0 – < publication
Microsoft	Microsoft SharePoint Enterprise Server 2016	16.0.0 – < publication
Microsoft	Microsoft SharePoint Server 2010 Service Pack 2	13.0.0.0 – < publication
Microsoft	Microsoft SharePoint Server 2019	16.0.0 – < publication
Microsoft	Microsoft Word 2010 Service Pack 2	13.0.0.0 – < publication
Microsoft	Microsoft Word 2013 Service Pack 1	15.0.1 – < publication
Microsoft	Microsoft Word 2016	16.0.1 – < publication
microsoft	office	2019
microsoft	office online server	—
microsoft	office web apps	2010
microsoft	office web apps server	2013
microsoft	sharepoint server	2016
microsoft	word	2016

References and patches

Microsoft Word Remote Code Execution Vulnerability vendor-advisory

CVSS score

7.8High

Source: microsoft · CVSS 3.1

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS (chance of exploitation in 30 days)

3.89%

higher than 90% of all CVEs

Timeline

ID reserved2020-12-02
Published2021-01-12 22:42
Reached IP-DB2026-10-25 00:03
Last updated2024-10-08 19:17

Assigned by (CNA): microsoft

View at source: CVE.org · NVD

Get told when these products get a new vulnerability

Turn on email alerts

Free · with an account · switch off any time

Recent CVEs in the same product — Microsoft Office / 365 Apps

8.8High

CVE-2026-120003 4 days ago

Microsoft Office Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

8.8High

CVE-2026-120001 4 days ago

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

6.5Medium

CVE-2026-119999 4 days ago

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

7.8High

CVE-2026-119997 4 days ago

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

6.5Medium

CVE-2026-119998 4 days ago

Microsoft Office Security Feature Bypass Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Product ui does not warn user of unsafe actions in Microsoft Office allows an unauthorized attacker to bypass a security feature over a network.

7.5High

CVE-2026-119995 4 days ago

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.