Certain NETGEAR devices are affected by authentication bypass.

published 2020-04-23 6 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9834

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

Certain NETGEAR devices are affected by authentication bypass. This affects R6300v2 before 1.0.4.8, R6400 before 1.0.1.20, R6700 before 1.0.1.20, R6900 before 1.0.1.20, R7000 before 1.0.7.10, R7100LG before V1.0.0.32, R7300DST before 1.0.0.52, R7900 before 1.0.1.16, R8000 before 1.0.3.36, R8300 before 1.0.2.94, R8500 before 1.0.2.94, WNDR3400v3 before 1.0.1.12, and WNR3500Lv2 before 1.2.0.40.

Patch / fix

fixed in 13

netgear r6300_firmware 1.0.4.8
netgear r6400_firmware 1.0.1.20
netgear r6700_firmware 1.0.1.20
netgear r6900_firmware 1.0.1.20
netgear r7000_firmware 1.0.7.10
netgear r7100lg_firmware 1.0.0.32
netgear r7300dst_firmware 1.0.0.52
netgear r7900_firmware 1.0.1.16
netgear r8000_firmware 1.0.3.36
netgear r8300_firmware 1.0.2.94
netgear r8500_firmware 1.0.2.94
netgear wndr3400_firmware 1.0.1.12
netgear wnr3500l_firmware 1.2.0.40

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.8	CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-287 Improper Authentication

References

kb.netgear.com /000051512/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-PSV-2017-0330
vendor-advisory

Sources

CVE List CVE-2017-18743
NVD CVE-2017-18743

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