CVE-2024-38173

Local code execution with user interaction

Published Aug 13, 2024 · Updated Jul 10, 2025

Remote code execution in Microsoft Outlook 2016 before 16.0.5461.1001 and affected Office releases allows local users to execute code. Microsoft has not disclosed the vulnerable Outlook component or how externally controlled file or path data reaches it. Exploitation requires local low-privileged access, high-complexity conditions, and user interaction, after which code runs with the victim's privileges.

CVSS severity6.7
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Microsoft Outlook 2016 before 16.0.5461.1001 and affected Office releases allows local users to execute code. Microsoft has not disclosed the vulnerable Outlook component or how externally controlled file or path data reaches it. Exploitation requires local low-privileged access, high-complexity conditions, and user interaction, after which code runs with the victim's privileges.

The record

CVE
CVE-2024-38173
Published
Aug 13, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Microsoft Office 2019
Classifications
CWE-73, T1204.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=19.0.0 <https://aka.ms/OfficeSecurityReleases

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Office 2019version=19.0.0 <https://aka.ms/OfficeSecurityReleases
Microsoft · Microsoft Outlook 2016version=16.0.0.0 <16.0.5461.1001
Microsoft · Microsoft Office LTSC 2021version=16.0.1 <https://aka.ms/OfficeSecurityReleases
Microsoft · Microsoft 365 Apps for enterpriseversion=16.0.1 <https://aka.ms/OfficeSecurityReleases

Published CVSS scores

6.7Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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