CVE-2021-27059
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
- Record
CVE-2021-27059- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13830
Microsoft Office Remote Code Execution Vulnerability
- Record
EUVD-2021-13830- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4qxg-56mj-c47p
Microsoft Office Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24108,...
Microsoft Office Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24108, CVE-2021-27057.
- Record
GHSA-4qxg-56mj-c47p- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
CISA KEV No score
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office contains an unspecified vulnerability that allows for remote code execution.
- Record
CVE-2021-27059- Updated
- 2026-11-02
NVD
Microsoft Office Remote Code Execution Vulnerability
- Record
CVE-2021-27059- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 8.5 High
AV:N/AC:M/Au:S/C:C/I:C/A:C - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27059 is a high vulnerability (CVSS 7.6) in Microsoft Office, published March 11, 2021. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.08%, the 93rd percentile. No source names a fixed version.