Heap-Based Buffer Overflow in Microsoft Office Word by Microsoft
CVE-2026-108449

8.8HIGH

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

References

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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