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Vulnerability record · CVE-2019-20721 · published 16 April 2020

CVE-2019-20721: Netgear d7800 firmware cross-site scripting vulnerability

Netgear · D7800 Firmware

Certain NETGEAR devices are affected by stored XSS. This affects D7800 before 1.0.1.47, EX2700 before 1.0.1.48, EX6100v2 before 1.0.1.76, EX6150v2 before 1.0.1.76, EX6200v2 before 1.0.1.72, EX6400 before 1.0.2.136, EX7300 before 1.0.2.136, R7500v2 before 1.0.3.38, R7800 before 1.0.2.52, R8900 before 1.0.4.12, R9000 before 1.0.4.12, WN2000RPTv3 before 1.0.1.32, WN3000RPv2 before 1.0.0.68, WN3000RPv3 before 1.0.2.70, WN3100RPv2 before 1.0.0.66, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, WNR2000v5 before 1.0.0.66, XR450 before 2.3.2.32, and XR500 before 2.3.2.32.

4.8 CVSS 3.1 Medium EPSS 0.52% · top 57.0% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score, v2 3.5
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
19Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by stored XSS. This affects D7800 before 1.0.1.47, EX2700 before 1.0.1.48, EX6100v2 before 1.0.1.76, EX6150v2 before 1.0.1.76, EX6200v2 before 1.0.1.72, EX6400 before 1.0.2.136, EX7300 before 1.0.2.136, R7500v2 before 1.0.3.38, R7800 before 1.0.2.52, R8900 before 1.0.4.12, R9000 before 1.0.4.12, WN2000RPTv3 before 1.0.1.32, WN3000RPv2 before 1.0.0.68, WN3000RPv3 before 1.0.2.70, WN3100RPv2 before 1.0.0.66, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, WNR2000v5 before 1.0.0.66, XR450 before 2.3.2.32, and XR500 before 2.3.2.32.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

19 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.netgear.com/000061207/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-Gateways-and-Extender Vendor Advisory
https://kb.netgear.com/000061207/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-Gateways-and-Extender Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-20721), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.