CVE-2021-28454
Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- 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 Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
- Record
CVE-2021-28454- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-15133
Microsoft Excel Remote Code Execution Vulnerability
- Record
EUVD-2021-15133- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vppx-xcwv-fc65
Microsoft Excel Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28451.
Microsoft Excel Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28451.
- Record
GHSA-vppx-xcwv-fc65- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Microsoft Excel Remote Code Execution Vulnerability
- Record
CVE-2021-28454- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/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 - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
- microsoft 365 apps
- microsoft 365 apps for enterprise
- microsoft excel 2010 service pack 2
- microsoft excel 2013 service pack 1
- microsoft excel 2016
- microsoft office 2010 service pack 2
- microsoft office 2013 service pack 1
- microsoft office 2016
- microsoft office 2019
- microsoft office online server
- microsoft office web apps server 2013 service pack 1
- microsoft office
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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-2021-28454 is a high vulnerability (CVSS 7.8) in Microsoft 365 Apps, published April 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.35%, the 88th percentile. No source names a fixed version.