CVE-2021-1711 — Microsoft Office Remote Code Execution Vulnerability

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 0.03584 — 0.8792 percentile

CVSS Vector

ATTACK VECTOR

Local

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

None

USER INTERACTION

Required

SCOPE

Unchanged

Temporal Score: 6.8

EPSS Score

0.03584

probability of exploitation in the next 30 days

0.8792 percentile - updated 2026-06-20

View on FIRST.org

Affected Products

11 affected products

Product	KB Article	Severity	Impact	Restart Required
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 Office 2010 Service Pack 2 (32-bit editions)	`4493143 (Security Update) 4493143 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2010 Service Pack 2 (64-bit editions)	`4493143 (Security Update) 4493143 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2013 RT Service Pack 1	`4486762 (Security Update) 4486762 (Security Update) 4486762 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2013 Service Pack 1 (32-bit editions)	`4486762 (Security Update) 4486762 (Security Update) 4486762 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2013 Service Pack 1 (64-bit editions)	`4486762 (Security Update) 4486762 (Security Update) 4486762 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2016 (32-bit edition)	`4486755 (Security Update) 4486755 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2016 (64-bit edition)	`4486755 (Security Update) 4486755 (Security Update)`	Important	Remote Code Execution	Maybe
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

Patches

4 patches

Article	Type	Restart
`Click to Run`	Security Update	No
`4493143 (Security Update) 4493143`	Security Update	Maybe
`4486762 (Security Update) 4486762 (Security Update) 4486762`	Security Update	Maybe
`4486755 (Security Update) 4486755`	Security Update	Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Bo Qu of Palo Alto Networks, @Ga1ois ) from Palo Alto Networks

References

MSRC Advisory MITRE NVD