Microsoft Excel Out-of-Bounds Read Vulnerability Allowing Information Disclosure

A vulnerability allowing out-of-bounds read has been identified in Microsoft Office Excel. This issue could enable an unauthorized attacker to disclose information over a network by reading small portions of heap memory.

Impact

Exploitation of this vulnerability could lead to unauthorized information disclosure.

Remediation

Security updates for this vulnerability are available for Microsoft Office LTSC and Microsoft 365 for Windows. However, the security update for Microsoft Office LTSC for Mac 2021, 2024, and Microsoft 365 for Mac is not yet available. Customers will be notified when these updates are released.