SARA / Free Tools / CVE / CVE-2021-42292

CVE-2021-42292 — Microsoft Excel Security Feature Bypass

Microsoft Excel Security Feature Bypass Vulnerability

CVSS
7.8 HIGH
EPSS
19.10% (top 4.70%)
CWE
Published
2021-11-10T00:47:25.000Z
Last modified
2025-10-21T23:25:25.426Z
CVSS vector
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
CISA KEV — Actively Exploited
Added to KEV
2021-11-17
BOD 22-01 due
2021-12-01
Ransomware use
Unknown

01What is this vulnerability?

Microsoft Excel Security Feature Bypass Vulnerability

02Affected products

VendorProductVersions
MicrosoftMicrosoft Office 201919.0.0
MicrosoftMicrosoft Office 2019 for Mac16.0.0
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1
MicrosoftMicrosoft Office LTSC 202116.0.1
MicrosoftMicrosoft Excel 201616.0.0.0
MicrosoftMicrosoft Office 201616.0.0
MicrosoftMicrosoft Excel 2013 Service Pack 115.0.0.0
MicrosoftMicrosoft Office 2013 Service Pack 115.0.0

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-17. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →