CVEs / CVE-2021-27059
CVE-2021-27059: Microsoft Office Remote Code Execution Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- high 8.5 CVSS 2.0 (NVD)
- EPSS 6.07% chance of exploitation in the next 30 days, higher than 93% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Office contains an unspecified vulnerability that allows for remote code execution.
Description
Microsoft Office Remote Code Execution Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Microsoft Office 2010 Service Pack 2 | from 13.0.0.0, before 14.0.7266.5000 | 14.0.7266.5000 |
| Microsoft Microsoft Office 2013 Service Pack 1 | from 15.0.0, before publication | publication |
| Microsoft Microsoft Office 2016 | from 16.0.0, before 16.0.5134.1000 | 16.0.5134.1000 |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 17 Nov 2021 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 8.5 highAV:N/AC:M/Au:S/C:C/I:C/A:CScored by NVD |
|---|
References
- CVE-2021-27059 on NVD
- CVE-2021-27059 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27059 Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27059 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27059 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.