Microsoft Copilot Command Processor command command injection

Summaryinfo

A vulnerability was found in Microsoft Copilot. It has been declared as critical. This impacts an unknown function of the component Command Processor. Such manipulation of the argument command leads to command injection. This vulnerability is listed as CVE-2026-48561. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Copilot (version now known). Affected by this issue is some unknown processing of the component Command Processor. The manipulation of the argument command with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to execute code over a network.

The advisory is available at msrc.microsoft.com. This vulnerability is handled as CVE-2026-48561 since 05/21/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/14/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Microsoft

Name

• Copilot

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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