May 2026: Microsoft Outlook for iOS Tampering Vulnerability
CVE-2026-42893 Published on May 12, 2026
Microsoft Outlook for iOS Tampering Vulnerability
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
Weakness Type
What is a Command Injection Vulnerability?
The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CVE-2026-42893 has been classified to as a Command Injection vulnerability or weakness.
Products Associated with CVE-2026-42893
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Affected Versions
Microsoft Outlook for iOS:- Version 1.0.0 and below 5.2617.1 is affected.