CVE-2025-34049

CVE-2025-34049 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including SecNigma.

AI-analyzed exploit summary This exploit targets an authenticated remote code execution vulnerability in OptiLink ONT1GEW GPON routers (Build 1127.190306). It leverages command injection in the formTracert endpoint to execute a reverse shell via mknod and netcat, bypassing the lack of mkfifo in the BusyBox environment.

An OS command injection vulnerability exists in the OptiLink ONT1GEW GPON router firmware version V2.1.11_X101 Build 1127.190306 and earlier. The router’s web management interface fails to properly sanitize user input in the target_addr parameter of the formTracert and formPing administrative endpoints. An authenticated attacker can inject arbitrary operating system commands, which are executed with root privileges, leading to remote code execution. Successful exploitation enables full compromise of the device. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-04 UTC.