Command injection vulnerability in ELECOM and LOGITEC wireless LAN routers allows a remote unauthenticated attacker to execute an arbitrary command by sending a specially crafted request to a certain port of the web management page. Affected products and versions are as follows: WRC-1167GHBK3-A v1.24 and earlier, WRC-F1167ACF2 all versions, WRC-600GHBK-A all versions, WRC-733FEBK2-A all versions, WRC-1467GHBK-A all versions, WRC-1900GHBK-A all versions, and LAN-W301NR all versions.