CVE-2026-45649: Office for Android Spoofing Vulnerability

Overview

Severity
High (CVSS 7.1)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Category
Spoofing
Exploit Status
Not Exploited
Exploitation Likelihood
Unlikely
Patch Tuesday
2026-Jun
Released
2026-06-09

Description

Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally.

FAQ

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? An attacker must send a user a malicious Office file and convince them to open it. Is the Preview Pane an attack vector for this vulnerability? No, the Preview Pane is not an attack vector. Are the updates for the Microsoft Word, PowerPoint and Excel for Android currently available? The security update for Microsoft Word for Android, Microsoft PowerPoint for Android and Microsoft Excel for Android are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.

Affected Products (3)

Microsoft Office

  • Microsoft Excel for Android
  • Microsoft PowerPoint for Android

Apps

  • Microsoft Word for Android

Acknowledgments

<a href="https://twitter.com/yanir_">Yanir Tsarimi</a>

Revision History

  • 2026-06-09: Information published.