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CVE-2026-45497highCWE-77

Microsoft M365 Copilot Remote Code Execution Vulnerability

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.7epss 0.5%
exploitation probability
0.5%top 63% of all CVEs
observed exploitation
nono source reports it
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L/E:U/RL:O/RC:C