OS command injection vulnerability exists in BUFFALO wireless LAN routers and wireless LAN repeaters. If a user logs in to the management page and sends a specially crafted request to the affected product from the product's specific management page, an arbitrary OS command may be executed.
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.