Buffer Overflow Vulnerability in Zyxel NR7101 Firmware

CVE-2022-43391

What is CVE-2022-43391?

A buffer overflow vulnerability exists in the CGI program parameter of the Zyxel NR7101 firmware, allowing authenticated attackers to exploit this weakness. By sending a specially crafted HTTP request, an attacker can trigger conditions that may lead to a denial-of-service (DoS) scenario, disrupting normal operation of the device. Users of vulnerable Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0 are advised to upgrade to the latest version to mitigate this risk.

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