Remote Code Execution Vulnerability Affects Microsoft Outlook
CVE-2024-30103

8.8HIGH

Key Information:

Vendor: Microsoft
Status: Microsoft Office 2019; Microsoft 365 Apps For Enterprise; Microsoft Office Ltsc 2021; Microsoft Outlook 2016
Vendor: CVE Published:; 11 June 2024

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What is CVE-2024-30103?

CVE-2024-30103 is a critical remote code execution vulnerability affecting Microsoft Outlook, a widely used email and personal information management application. This vulnerability allows attackers to remotely execute arbitrary code on an affected system by leveraging specific malicious inputs, potentially leading to severe consequences for organizations. Given the central role Outlook plays in corporate communications and operations, the exploitation of this vulnerability can compromise sensitive data, disrupt business continuity, and facilitate further attacks within an organization’s network.

Technical Details

The vulnerability exists due to improper handling of certain inputs in Microsoft Outlook, which allows attackers to craft specially designed emails or attachments. When a user interacts with these malicious elements, it triggers the execution of unauthorized code in the context of the user’s session. This flaw affects various versions of Microsoft Outlook, making it a widespread risk for many organizations using this software for email and scheduling purposes.

Impact of the Vulnerability

Remote Code Execution: The most significant impact of CVE-2024-30103 is the potential for remote code execution, allowing attackers to gain control of systems without requiring physical access. This can lead to unauthorized data access and manipulation.
Data Breaches: Exploitation of this vulnerability could result in unauthorized access to sensitive information stored within email accounts or corporate resources, leading to potential data breaches and financial losses.
Malware Deployment: Successful exploitation could enable attackers to install malware on affected systems, which can further propagate within the organization’s network, leading to larger-scale attacks, including ransomware infections and data exfiltration efforts.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2019 32-bit Systems 19.0.0

Microsoft Office LTSC 2021 x64-based Systems 16.0.1

News Articles

Morphisec

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Technical Analysis: CVE-2024-30103

In this blog Morphisec researchers provide technical analysis of CVE-2024-30103, a remote code execution vulnerability impacting Microsoft Outlook.

5 months ago

CybersecurityNews

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Critical Microsoft Outlook Zero-Click RCE Flaw Executes as Email is Opened

This vulnerability, designated as CVE-2024-30103, enables attackers to run arbitrary code by sending a specially designed email. When the recipient opens the email, the exploit is triggered.

7 months ago