Is CVE-2024-20673 in the CISA KEV catalog?

No. CVE-2024-20673 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-20673?

CVE-2024-20673 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-20673?

CVE-2024-20673 has an EPSS score of 1.18% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-20673?

Install KB5002536 for Microsoft Excel 2016. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2024-20673

HIGH

7.8

CVSS v3

NVD

Description

Microsoft Office Remote Code Execution Vulnerability

CWE-693Protection Mechanism Failure

How to fix

Remediation Available

Microsoft Excel 2016Microsoft

Install:KB5002536Microsoft

Microsoft Office 2016Microsoft

Install:KB5002522Microsoft

Install:KB5002469Microsoft

Install:KB5002537Microsoft

Install:KB5002467Microsoft

Microsoft PowerPoint 2016Microsoft

Install:KB5002495Microsoft

Microsoft Publisher 2016Microsoft

Install:KB5002492Microsoft

Microsoft Visio 2016Microsoft

Install:KB5002491Microsoft

Microsoft Word 2016Microsoft

Install:KB5002542Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

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

1.18%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Patch1

msrc.microsoft.com

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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 2026-05-19.