PT-2026-70626 · Microsoft · Office

CVE-2026-64898

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Published

2026-08-11

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Updated

2026-08-11

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 (affected versions not specified)
Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. In Microsoft Office, this flaw allows an unauthorized attacker to execute arbitrary code on the local system.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Integer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-64898

Affected Products

Office