Is CVE-2020-15416 actively exploited?

No active exploitation of CVE-2020-15416 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15416 be exploited remotely?

Partially. CVE-2020-15416 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2020-15416?

CVE-2020-15416 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2020-15416

CWE-121Published: July 28, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9703.

NVD Source

Technical Analysis

CVE-2020-15416 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.