Certain NETGEAR devices are affected by Stored XSS.

published 2020-12-29 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-23494

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

Certain NETGEAR devices are affected by Stored XSS. This affects D7800 before 1.0.1.56, R7500v2 before 1.0.3.46, R7800 before 1.0.2.68, R8900 before 1.0.4.28, R9000 before 1.0.4.28, XR500 before 2.3.2.56, XR700 before 1.0.1.10, and RAX120 before 1.0.0.78.

Patch / fix

fixed in 8

netgear d7800_firmware 1.0.1.56
netgear r7500v2_firmware 1.0.3.46
netgear r7800_firmware 1.0.2.68
netgear r8900_firmware 1.0.4.28
netgear r9000_firmware 1.0.4.28
netgear xr500_firmware 2.3.2.56
netgear xr700_firmware 1.0.1.10
netgear rax120_firmware 1.0.0.78

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.1	CVSS:3.1/AC:L/AV:A/A:N/C:H/I:H/PR:H/S:U/UI:N
CNA	3.1	6.1	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

kb.netgear.com /000062643/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-PSV-2018-0513
vendor-advisory

Sources

CVE List CVE-2020-35839
NVD CVE-2020-35839

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary