Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Microsoft Office Remote Code Execution Vulnerability
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H H R C H H H 7.6 .0318 87.0 YES
AFFECTED
Product Versions Fixed
Microsoft Office 2010 Service Pack 2 13.0.0.0 – —
Microsoft Office 2013 Service Pack 1 15.0.0 – —
Microsoft Office 2016 16.0.0 – —
TIMELINE
Feb 10 Reserved by microsoft
Nov 3 Added to CISA KEV, remediation due 2021-11-17
Nov 3 Published (CNA: microsoft)
Description
Microsoft Office Remote Code Execution Vulnerability
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| February 10, 2021 | Reserved | Reserved by microsoft |
| November 3, 2021 | KEV ADDED | Added to CISA KEV, remediation due 2021-11-17 |
| November 3, 2021 | Published | Published (CNA: microsoft) |
Affected
Affected products and packages — 3 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Microsoft | Microsoft Office 2010 Service Pack 2 | — | 13.0.0.0 | — |
| Microsoft | Microsoft Office 2013 Service Pack 1 | — | 15.0.0 | — |
| Microsoft | Microsoft Office 2016 | — | 16.0.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-27059 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.