PT-2026-70631 · Microsoft · Office

CVE-2026-64903

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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 An integer overflow or wraparound occurs in Microsoft Office, which could allow an unauthorized attacker to execute arbitrary code locally or remotely, potentially affecting the entire system. An integer overflow is a condition where an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of bits.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Integer Overflow

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

BDU:2026-11433
CVE-2026-64903

Affected Products

Office