HOMEVULNERABILITIESCVE-2019-20756
MEDIUM

CVE-2019-20756

CWE-79Published: April 16, 2020· Updated: Jun 17, 2026

6.1
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by reflected XSS. This affects EX7000 before 1.0.0.64, EX6200 before 1.0.3.86, EX6150 before 1.0.0.38, EX6130 before 1.0.0.22, EX6120 before 1.0.0.40, EX6100 before 1.0.2.22, EX6000 before 1.0.0.30, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, R8300 before 1.0.2.94, R7300DST before 1.0.0.62, R7000P before 1.3.0.20, R6900P before 1.3.0.20, R6400 before 1.0.1.32, R6300v2 before 1.0.4.24, R8500 before 1.0.2.94, WNDR3400v3 before 1.0.1.18, and WN2500RPv2 before 1.0.1.52.

NVD Source

Technical Analysis

CVE-2019-20756 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

netgear36 product(s)
ex7000 firmwareex7000ex6200 firmwareex6200ex6150 firmwareex6150ex6130 firmwareex6130ex6120 firmwareex6120ex6100 firmwareex6100+24
Source: NVD CPE · 36 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2019-20756
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedApr 16, 2020

Related CVEs (CWE-79)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-20756 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.