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

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

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.