Is CVE-2021-42292 in the CISA KEV catalog?

Yes. CVE-2021-42292 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-17.

What is the CVSS severity of CVE-2021-42292?

CVE-2021-42292 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-42292?

CVE-2021-42292 has an EPSS score of 31.95% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2021-42292

HIGHCISA KEVEPSS 98th pctl

7.8

CVSS v3

NVD

Description

Microsoft Excel Security Feature Bypass Vulnerability

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

31.95%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Excel Security Feature Bypass

A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.

Apply updates per vendor instructions.

Remediation due: 2021-12-01

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.