How severe is CVE-2024-20673?

CVE-2024-20673 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-20673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20673?

CVE-2024-20673 primarily affects Microsoft Excel. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-20673?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-20673 have an EU (EUVD) identifier?

Yes. CVE-2024-20673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18388.

When was CVE-2024-20673 published?

CVE-2024-20673 was published on 2024-02-13 and last updated on 2026-06-17.

CVE-2024-20673

CVE-2024-20673 is a high-severity vulnerability in Microsoft Excel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-693.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-18388
Weakness: CWE-693
Affected product: Microsoft Excel
Published: 2024-02-13
Last modified: 2026-06-17

Description

Microsoft Office Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2024-20673?: Microsoft Office Remote Code Execution Vulnerability
How severe is CVE-2024-20673?: CVE-2024-20673 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-20673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-20673?: CVE-2024-20673 primarily affects Microsoft Excel. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-20673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-20673 have an EU (EUVD) identifier?: Yes. CVE-2024-20673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18388.
When was CVE-2024-20673 published?: CVE-2024-20673 was published on 2024-02-13 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20673

Affected products (9)

cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2016:*:-:*:-:*:-:*
cpe:2.3:a:microsoft:office:2019:*:*:*:click-to-run:*:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:powerpoint:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:publisher:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visio:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:*

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