Unrated severityNVD Advisory· Published Jul 14, 2026· Updated Aug 3, 2026
Outlook Copilot Tampering Vulnerability
CVE-2026-55145
Description
Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network.
Affected products
1Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55145mitrevendor-advisorypatch
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