Microsoft UFO up to 3.0.8 Mobile MCP Server mobile_mcp_server.py press_key key_code improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Microsoft UFO up to 3.0.8. The impacted element is the function press_key of the file ufo/client/mcp/http_servers/mobile_mcp_server.py of the component Mobile MCP Server. The manipulation of the argument key_code results in improper authorization. This vulnerability is known as CVE-2026-105793. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft UFO up to 3.0.8. Affected is the function press_key of the file ufo/client/mcp/http_servers/mobile_mcp_server.py of the component Mobile MCP Server. The manipulation of the argument key_code with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the press_key tool in ufo/client/mcp/http_servers/mobile_mcp_server.py accepts a free-form key_code parameter and passes it to `adb shell input keyevent`. The adb client joins the arguments into a remote command string that the Android shell reparses, allowing an authenticated Mobile MCP caller to execute additional commands as the Android shell user on an authorized connected device. Exploitation requires a valid UFO_MCP_API_KEY, adb on the host, and a reachable authorized device, and it does not establish host operating-system execution, Android root execution, or access beyond the Android shell-user privileges. This issue is fixed in version 3.0.9.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-105793 since 10/05/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/06/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 3.0.9 eliminates this vulnerability.

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Productinfo

Vendor

• Microsoft

Name

• UFO

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://github.com/microsoft/UFO/

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