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CVE-2026-41090CriticalMonitor

Microsoft Copilot Tampering Vulnerability

Severity Critical  ·  Urgency Monitor

Why it matters: Critical severity (CVSS 9.3)

Tampering · Critical · CVSS 9.3. Affects: Microsoft 365 Copilot for iOS.

CVSS 9.3EPSS 0.4%Update published 2026-06-23Source updated 2026-06-23NVD

Affected: Microsoft 365 Copilot for iOS

Change history

2026-06-23 · First seen

View at Microsoft →