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High severity7.7NVD Advisory· Published May 12, 2026· Updated Jun 17, 2026

CVE-2026-42832

CVE-2026-42832

Description

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

Affected products

5

Microsoft/Officellm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:*
Microsoft/Excel
cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:*
Range: <16.0.19822.20190
Microsoft/Office Long Term Servicing Channel
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*
Microsoft/Word
cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:*
Range: <16.0.19822.20190

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42832nvdVendor Advisory

News mentions

4

Coding Gaffe Exposes Microsoft 365 Accounts to Widespread Takeover
Dark Reading · Jun 3, 2026
Microsoft 365 Android Apps Let Any App Steal Account Tokens via Leftover Debug Flag
The Hacker News · Jun 3, 2026
Patch Tuesday - May 2026
Rapid7 Blog · May 13, 2026
Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-days
BleepingComputer · May 12, 2026