MSRC-CVE-2026-26134 — Microsoft Office Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could gain administrator privileges.

Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.

Security updates
16.0.19822.20000 — https://support.google.com/googleplay/answer/113412?hl=en

Vulnerabilities 1

High 7.8

CVE-2026-26134

Microsoft Office Elevation of Privilege Vulnerability

Integer overflow or wraparound in Microsoft Office allows an authorized attacker to elevate privileges locally.

Microsoft Microsoft Office for Android Android

Mar 10, 2026

Revision history

2026-03-10 #1
Information published.

References

CVE-2026-26134 Microsoft Office Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26134
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss