Main Vulnerability Database Vulnerabilities #VU134479

Improper access control in Microsoft products - CVE-2026-45649

Published: June 12, 2026

Vulnerability identifier: #VU134479

CSH Severity: High

CVSS v4: 8.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-45649

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in Office for Android. A remote attacker can trick a victim to open a specially crafted Office file and perform spoofing attack on the system.

Affected software

Microsoft Word for Android
Microsoft PowerPoint for Android
Microsoft Excel for Android

How to mitigate CVE-2026-45649

Install updates from vendor's website.

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45649

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