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CVE-2021-42292

Microsoft Excel Security Feature Bypass Vulnerability

Basic Information

CVE State
PUBLISHED
Reserved Date
October 12, 2021
Published Date
November 10, 2021
Last Updated
February 04, 2025
Vendor
Microsoft
Product
Microsoft Office 2019, Microsoft Office 2019 for Mac, Microsoft 365 Apps for Enterprise, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC 2021, Microsoft Excel 2016, Microsoft Office 2016, Microsoft Excel 2013 Service Pack 1, Microsoft Office 2013 Service Pack 1
Description
Microsoft Excel Security Feature Bypass Vulnerability

CVSS Scores

CVSS v3.1

7.8 - HIGH

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

SSVC Information

Exploitation
active
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (added 2021-11-17 00:00:00 UTC) Source
Proof of Concept Available
Yes (added 2021-11-09 12:14:45 UTC) Source

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42292

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-17 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

corelight/CVE-2021-42292

Type: github • Created: 2021-11-09 12:14:45 UTC • Stars: 18

A Zeek package to detect CVE-2021-42292, a Microsoft Excel local privilege escalation exploit.