What’s Vulnerable › Vulnerabilities
CVE-2026-45497: Microsoft M365 Copilot Remote Code Execution Vulnerability
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-04 · updated 2026-09-24
- Weakness: CWE-77
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.
Affected products
- Microsoft Copilot: all versions
- Microsoft 365 Copilot: all versions
References
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