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High severity7.8NVD Advisory· Published Mar 10, 2026· Updated Jun 17, 2026

CVE-2026-26134

CVE-2026-26134

Description

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

Affected products

3

Microsoft/365 Copilot
cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:android:*:*
Range: <16.0.19822.20000
Microsoft/Officellm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 16.0.1

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26134nvdVendor Advisory

News mentions

0

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