SB2025081388 - Multiple vulnerabilities in Microsoft Word 



SB2025081388 - Multiple vulnerabilities in Microsoft Word

Published: August 13, 2025

Security Bulletin ID SB2025081388
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2025-53784)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can execute arbitrary code on the target system.


2) Incorrect Conversion between Numeric Types (CVE-ID: CVE-2025-53733)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to incorrect conversion between numeric types in Microsoft Word. A remote attacker can execute arbitrary code on the target system.


3) Out-of-bounds read (CVE-ID: CVE-2025-53736)

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Microsoft Word. A local attacker can trigger an out-of-bounds read error and read contents of memory on the system.


4) Use-after-free (CVE-ID: CVE-2025-53738)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.