How severe is CVE-2024-38173?

CVE-2024-38173 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-38173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-38173?

CVE-2024-38173 primarily affects Microsoft 365 Apps. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-38173?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-38173 have an EU (EUVD) identifier?

Yes. CVE-2024-38173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37144.

When was CVE-2024-38173 published?

CVE-2024-38173 was published on 2024-08-13 and last updated on 2026-06-17.

CVE-2024-38173

CVE-2024-38173 is a medium-severity vulnerability in Microsoft 365 Apps with a CVSS 3.x base score of 6.7. 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-73.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-37144
Weakness: CWE-73
Affected product: Microsoft 365 Apps
Published: 2024-08-13
Last modified: 2026-06-17

Description

Microsoft Outlook Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2024-38173?: Microsoft Outlook Remote Code Execution Vulnerability
How severe is CVE-2024-38173?: CVE-2024-38173 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-38173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-38173?: CVE-2024-38173 primarily affects Microsoft 365 Apps. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-38173?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-38173 have an EU (EUVD) identifier?: Yes. CVE-2024-38173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37144.
When was CVE-2024-38173 published?: CVE-2024-38173 was published on 2024-08-13 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38173

Affected products (4)

cpe:2.3:a:microsoft:365_apps:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*

More vulnerabilities in Microsoft 365 Apps

CVE-2024-21413 — Critical (CVSS 9.8): Microsoft Outlook Remote Code Execution Vulnerability
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