CVE-2026-41090
Critical
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
SeverityCritical
CVSS9.3
Exploit probability—
Product
Microsoft 365 Copilot
PublishedMay 22, 2026
First seenMay 22, 2026
Weakness typeCWE-77Command injection
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft 365_copilot | No range specified | — |
Check your version
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