SB2025081388 - Multiple vulnerabilities in Microsoft Word
Published: August 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2025-53784)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
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)
CWE-ID: CWE-681 - Incorrect Conversion between Numeric Types
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
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)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
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)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
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.