Heap-Based Buffer Overflow in Microsoft Office Word by Microsoft
CVE-2026-108449
8.8HIGH
Key Information:
- Vendor
Microsoft
- Status
- Vendor
- CVE Published:
- 15 October 2026
What is CVE-2026-108449?
A heap-based buffer overflow vulnerability in Microsoft Office Word enables an unauthorized attacker to execute arbitrary code through a network connection. This flaw can be exploited to gain unauthorized control of affected systems, potentially leading to data compromise or further exploitation. It is critical for users to apply updates and patches provided by Microsoft to mitigate the risk associated with this vulnerability. For more information, refer to the Microsoft advisory.
Affected Version(s)
Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1
Microsoft Office 365 for Mac 1.0.0 < 16.114.26101123
Microsoft Office LTSC 2021 32-bit Systems 16.0.1 < 16.0.14334.20974