OnlyPatch
Microsoft Office

CVE-2021-1714 — Microsoft Excel Remote Code Execution Vulnerability

Important CVSS 7.8 EPSS 0.03101 2021-01 archive

Executive Summary

None

Overview

7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Jan 12 2021
Last Updated Jan 12 2021
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.03101 — 0.86385 percentile
NVD CVSS 7.8 HIGH — matches MSRC

CVSS Vector

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
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.8

EPSS Score

0.03101
probability of exploitation in the next 30 days
0.86385 percentile - updated 2026-07-25
View on FIRST.org

Affected Products

9 affected products
Product KB Article Severity Impact Restart Required
Excel Services on Microsoft SharePoint Enterprise Server 2013 Service Pack 1 4486736 (Security Update) Important Remote Code Execution Maybe
Microsoft 365 Apps for Enterprise for 32-bit Systems Click to Run (Security Update) Important Remote Code Execution No
Microsoft 365 Apps for Enterprise for 64-bit Systems Click to Run (Security Update) Important Remote Code Execution No
Microsoft Excel 2010 Service Pack 2 (32-bit editions) 4493186 (Security Update) 4493186 (Security Update) Important Remote Code Execution 4493148 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2010 Service Pack 2 (64-bit editions) 4493186 (Security Update) 4493186 (Security Update) Important Remote Code Execution 4493148 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2013 RT Service Pack 1 4493176 (Security Update) 4493176 (Security Update) 4493176 (Security Update) Important Remote Code Execution 4493139 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2013 Service Pack 1 (32-bit editions) 4493176 (Security Update) 4493176 (Security Update) 4493176 (Security Update) Important Remote Code Execution 4493139 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2013 Service Pack 1 (64-bit editions) 4493176 (Security Update) 4493176 (Security Update) 4493176 (Security Update) Important Remote Code Execution 4493139 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2016 (32-bit edition) 4493165 (Security Update) 4493165 (Security Update) Important Remote Code Execution 4486754 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Excel 2016 (64-bit edition) 4493165 (Security Update) 4493165 (Security Update) Important Remote Code Execution 4486754 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2010 Service Pack 2 (32-bit editions) 4493181 (Security Update) 4493181 (Security Update) Important Remote Code Execution 4493140 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2010 Service Pack 2 (64-bit editions) 4493181 (Security Update) 4493181 (Security Update) Important Remote Code Execution 4493140 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2013 RT Service Pack 1 4486759 (Security Update) 4486759 (Security Update) 4486759 (Security Update) Important Remote Code Execution 4486725 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2013 Service Pack 1 (32-bit editions) 4486759 (Security Update) 4486759 (Security Update) 4486759 (Security Update) Important Remote Code Execution 4486725 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2013 Service Pack 1 (64-bit editions) 4486759 (Security Update) 4486759 (Security Update) 4486759 (Security Update) Important Remote Code Execution 4486725 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2016 (32-bit edition) 4493168 (Security Update) 4493168 (Security Update) Important Remote Code Execution 4486757 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2016 (64-bit edition) 4493168 (Security Update) 4493168 (Security Update) Important Remote Code Execution 4486757 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Maybe None Microsoft Office 2019 for 32-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office 2019 for 64-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office 2019 for Mac Release Notes (Security Update) Important Remote Code Execution No
Microsoft Office Online Server 4493160 (Security Update) Important Remote Code Execution Maybe
Microsoft Office Web Apps Server 2013 Service Pack 1 4493171 (Security Update) Important Remote Code Execution Maybe
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 4486724 (Security Update) Important Remote Code Execution Maybe

Patches

6 patches
Article Type Restart
4486736 Security Update Maybe
Click to Run Security Update No
Release Notes Security Update No
4493160 Security Update Maybe
4493171 Security Update Maybe
4486724 Security Update Maybe

Known Exploits

Acknowledgments

Jinquan(@jq0904) of DBAPPSecurity Lieying Lab

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