CVE-2022-21840
Microsoft Office Remote Code Execution Vulnerability
8.8 High
Microsoft Office Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
3.28%Up 1.7 points since Feb 8, 2022
What each source reports
CVE List Score used
Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
- Record
CVE-2022-21840- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2022-26996
Microsoft Office Remote Code Execution Vulnerability
- Record
EUVD-2022-26996- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rq4v-w4c3-3h29
Microsoft Office Remote Code Execution Vulnerability.
Microsoft Office Remote Code Execution Vulnerability.
- Record
GHSA-rq4v-w4c3-3h29- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Microsoft Office Remote Code Execution Vulnerability
- Record
CVE-2022-21840- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
- microsoft office
- microsoft excel
- microsoft 365 apps for enterprise
- microsoft excel 2013 service pack 1
- microsoft excel 2016
- microsoft office 2013 service pack 1
- microsoft office 2016
- microsoft office 2019
- microsoft office 2019 for mac
- microsoft office ltsc 2021
- microsoft office ltsc for mac 2021
- microsoft office online server
Show 11 moreShow less
- microsoft office web apps server 2013 service pack 1
- microsoft sharepoint enterprise server 2013 service pack 1
- microsoft sharepoint enterprise server 2016
- microsoft sharepoint foundation 2013 service pack 1
- microsoft sharepoint server 2019
- microsoft sharepoint server subscription edition
- microsoft office long term servicing channel
- microsoft office web apps
- microsoft sharepoint server subscription edition language pack
- microsoft sharepoint enterprise server
- microsoft sharepoint server
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-21840 is a high vulnerability (CVSS 8.8) in Microsoft Office, published January 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.28%, the 88th percentile. No source names a fixed version.