PT-2026-70400 · Microsoft · Office Word

CVE-2026-58651

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Published

2026-08-11

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Updated

2026-08-14

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Microsoft Office Word (affected versions not specified)
Description A heap-based buffer overflow occurs in Microsoft Office Word, which could allow an unauthorized attacker to execute code locally. A heap-based buffer overflow is a memory corruption issue that happens when a program writes more data to a heap-allocated memory block than it can hold.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-58651

Affected Products

Office Word