CVE-2026-40363
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-05-22

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
2026-05-12
Last Modified
2026-05-22
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-40363
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft 365_copilot From 16.0.19822.20190 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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