CVE-2021-42292
Microsoft Excel Security Feature Bypass Vulnerability
Microsoft Excel Security Feature Bypass 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 Security Feature Bypass Vulnerability
Microsoft Excel Security Feature Bypass Vulnerability
- Record
CVE-2021-42292- 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-2021-29267
Microsoft Excel Security Feature Bypass Vulnerability
- Record
EUVD-2021-29267- 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
GitHub AdvisoriesGHSA-jp63-fcqh-36rc
Microsoft Excel Security Feature Bypass Vulnerability
Microsoft Excel Security Feature Bypass Vulnerability
- Record
GHSA-jp63-fcqh-36rc- 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-863
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Excel Security Feature Bypass
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
- Record
CVE-2021-42292- Weakness
- CWE-357
- Updated
- 2026-11-02
NVD
Microsoft Excel Security Feature Bypass Vulnerability
- Record
CVE-2021-42292- 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 - Updated
- 2026-11-02
Affected products
- microsoft excel
- microsoft 365 apps
- 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
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Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | corelight/CVE-2021-42292 | 2021-11-09 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42292 is a high vulnerability (CVSS 7.8) in Microsoft Excel, published November 10, 2021. CISA lists it as known to be exploited, since November 17, 2021. EUVD reports exploitation since November 17, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 43.0%, the 98th percentile. No source names a fixed version.