CVEs / CVE-2021-42292
CVE-2021-42292: Microsoft Excel Security Feature Bypass
- Known exploited in the CISA KEV catalog since 17 Nov 2021
- medium 6.8 CVSS 2.0 (NVD)
- EPSS 43% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Description
Microsoft Excel Security Feature Bypass Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Microsoft 365 Apps for Enterprise | from 16.0.1, before https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft Microsoft Excel 2013 Service Pack 1 | from 15.0.0.0, before 15.0.5397.1001 | 15.0.5397.1001 |
| Microsoft Microsoft Excel 2016 | from 16.0.0.0, before 16.0.5239.1001 | 16.0.5239.1001 |
| Microsoft Microsoft Office 2013 Service Pack 1 | from 15.0.0, before 15.0.5397.1001 | 15.0.5397.1001 |
| Microsoft Microsoft Office 2016 | from 16.0.0, before 16.0.5239.1001 | 16.0.5239.1001 |
| Microsoft Microsoft Office 2019 | from 19.0.0, before https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft Microsoft Office 2019 for Mac | from 16.0.0, before 16.55.21111400 | 16.55.21111400 |
| Microsoft Microsoft Office LTSC 2021 | from 16.0.1, before https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft Microsoft Office LTSC for Mac 2021 | from 16.0.1, before 16.55.21111400 | 16.55.21111400 |
Exploitation
| In CISA KEV since | 17 Nov 2021 |
|---|---|
| Due date for US federal agencies | 1 Dec 2021 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 6.8 mediumAV:N/AC:M/Au:N/C:P/I:P/A:PScored by NVD |
|---|
References
- CVE-2021-42292 on NVD
- CVE-2021-42292 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42292 Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42292 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-42292 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.