CVE-2026-45497
Microsoft M365 Copilot Remote Code Execution vulnerability
MSRC advisory June 4, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-45497
- Affected products
- Microsoft M365 Copilot Remote Code Execution · Microsoft Microsoft M365 Copilot Remote Code Execution · Microsoft
What happened
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.
What it means for your business
Microsoft M365 Copilot Remote Code Execution vulnerability (CVE-2026-45497) was added to Microsoft’s security update guidance. Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Sources
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