KLA65127 Multiple vulnerabilities in Microsoft Office

Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, obtain sensitive information.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in Microsoft Office can be exploited remotely to gain privileges.
2. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
3. An information disclosure vulnerability in Microsoft Teams for Android can be exploited remotely to obtain sensitive information.

Original advisories

CVE-2024-26199

CVE-2024-21426

CVE-2024-21448

Exploitation

Public exploits exist for this vulnerability.

Related products

Microsoft-SharePoint

CVE list

CVE-2024-26199 critical

CVE-2024-21426 critical

CVE-2024-21448 warning

KB list

5002559

5002564

5002562

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update component usually can be accessed from the Control Panel) and updates from the Update Options section, that are listed in your Office Account (Office Account tab usually can be accessed from the File menu)

Install Office updates

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

• Microsoft SharePoint Server Subscription EditionMicrosoft 365 Apps for Enterprise for 64-bit SystemsMicrosoft SharePoint Server 2019Microsoft Teams for AndroidMicrosoft SharePoint Enterprise Server 2016