Is CVE-2019-20736 actively exploited?

No active exploitation of CVE-2019-20736 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-20736 be exploited remotely?

Partially. CVE-2019-20736 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2019-20736?

CVE-2019-20736 has a CVSS score of 6.8 (MEDIUM).

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MEDIUM

CVE-2019-20736

CWE-787Published: April 16, 2020· Updated: Jun 17, 2026

6.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6000 before 1.0.0.72, D6100 before 1.0.0.63, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.4.2, WNDR3700v4 before 1.0.2.102, WNDR4300v1 before 1.0.2.104, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, WNR2000v5 before 1.0.0.68, and XR500 before 2.3.2.32.

NVD Source

Technical Analysis

CVE-2019-20736 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 6.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.