PT-2026-47943 · Microsoft · Office

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-45456

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Office (affected versions not specified)

Description A type confusion issue occurs when a resource is accessed using an incompatible type. This allows an unauthorized attacker to execute arbitrary code locally or remotely, potentially affecting the entire system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2026-45456

Affected Products

Office

References · 3

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45456 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45456 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-45456 · Security Note