Executive brief
Microsoft Teams for Android is a communication application used by millions of organizations for messaging and collaboration. A path traversal vulnerability in the application could allow an attacker to execute arbitrary code remotely, potentially compromising user devices, stealing sensitive communications, or disrupting business operations.
Technical details
The vulnerability is a path traversal flaw (CWE-22) in Microsoft Teams for Android that fails to properly restrict file paths accessed by the application. An attacker can exploit this over the network by crafting malicious input that traverses directory boundaries and writes executable code to attainable locations on the device, leading to arbitrary code execution. The attack vector is network-based and does not require user authentication or interaction. A patch is likely available from Microsoft, though specific version information is not detailed in the advisory.
Affected products
- Microsoft Teams for Android <UNKNOWN>
Timeline
- 2026-08-11: disclosed