Vulnerability in Microsoft 365 Apps For Enterprise
CVE-2021-42292
Microsoft Excel Security Feature Bypass Vulnerability
EPSS: 0.355 (97.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 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.
Affected products
- Microsoft 365 Apps For Enterprise — versions 16.0.1
- Microsoft Excel 2013 Service Pack 1 — versions 15.0.0.0
- Microsoft Excel 2016 — versions 16.0.0.0
- Microsoft Office 2013 Service Pack 1 — versions 15.0.0
- Microsoft Office 2016 — versions 16.0.0
- Microsoft Office 2019 — versions 19.0.0
- Microsoft Office 2019 For Mac — versions 16.0.0
- Microsoft Office Ltsc 2021 — versions 16.0.1
- Microsoft Office Ltsc For Mac 2021 — versions 16.0.1
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42292 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-42292?
- CVE-2021-42292 is a high-severity vulnerability in Microsoft 365 Apps For Enterprise. CVSS score: 7.8/10. Published 2021-11-10.
- How severe is CVE-2021-42292?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-42292 known to be exploited?
- Yes. CVE-2021-42292 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-17), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.