CVE-2026-45461
Undergoing Analysis Undergoing Analysis - In Progress
Heap-based Buffer Overflow in Microsoft Office

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-45461
EUVD
EUVD-2026-35671
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft office *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability is a heap-based buffer overflow in Microsoft Office. It allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

The vulnerability can lead to remote code execution with critical severity, meaning an attacker could run arbitrary code on your system without permission.

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