SB20250610109 - Multiple vulnerabilities in Microsoft Office

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Improper Restriction of Names for Files and Other Resources (CVE-ID: CVE-2025-47173)

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

The vulnerability exists due to improper restriction of names for files and other resources in Microsoft Office. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.

2) Type Confusion (CVE-ID: CVE-2025-47167)

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

The vulnerability exists due to a type confusion error in Microsoft Office. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Heap-based buffer overflow (CVE-ID: CVE-2025-47162)

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

The vulnerability exists due to a boundary error in Microsoft Office. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

4) Use-after-free (CVE-ID: CVE-2025-47164)

The vulnerability allows a remote attacker to compromise vulnerable system.

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

5) Improper Restriction of Names for Files and Other Resources (CVE-ID: CVE-2025-47953)

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

The vulnerability exists due to improper restriction of names for files and other resources in Microsoft Office. A remote attacker can execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47173
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47167
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47162
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47164
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47953