Is CVE-2019-20735 actively exploited?

No active exploitation of CVE-2019-20735 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-20735 be exploited remotely?

Partially. CVE-2019-20735 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2019-20735?

CVE-2019-20735 has a CVSS score of 6.8 (MEDIUM).

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MEDIUM

CVE-2019-20735

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 D3600 before 1.0.0.75, D6000 before V1.0.0.75, D6100 before V1.0.0.63, R7800 before v1.0.2.52, R8900 before v1.0.4.2, R9000 before v1.0.4.2, RBK50 before v2.3.0.32, RBR50 before v2.3.0.32, RBS50 before v2.3.0.32, WNDR3700v4 before V1.0.2.102, WNDR4300v1 before V1.0.2.104, WNDR4300v2 before v1.0.0.58, WNDR4500v3 before v1.0.0.58, WNR2000v5 before v1.0.0.68, and XR500 before V2.3.2.32.

NVD Source

Technical Analysis

CVE-2019-20735 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.