SB2025120987 - Multiple vulnerabilities in Microsoft Excel
Published: December 9, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Untrusted Pointer Dereference (CVE-ID: CVE-2025-62561)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to untrusted pointer dereference in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.
2) Untrusted Pointer Dereference (CVE-ID: CVE-2025-62560)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to untrusted pointer dereference in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.
3) Untrusted Pointer Dereference (CVE-ID: CVE-2025-62556)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to untrusted pointer dereference in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.
4) Use-after-free (CVE-ID: CVE-2025-62553)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
5) Out-of-bounds read (CVE-ID: CVE-2025-62564)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in Microsoft Excel. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system, leading to arbitrary code execution.
6) Use-after-free (CVE-ID: CVE-2025-62563)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Excel. 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.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62561
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62560
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62556
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62553
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62564
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-62563