Certain NETGEAR devices are affected by authentication bypass.

published 2020-04-22 6y ago modified 2026-06-17 4mo ago also EUVD-2018-13646

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

Certain NETGEAR devices are affected by authentication bypass. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0.17.

Patch / fix

fixed in 2

netgear wac505_firmware 5.0.0.17
netgear wac510_firmware 5.0.0.17

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Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 /000060230/Security-Advisory-for-Authentication-Bypass-on-Some-Wireless-Access-Points-PSV-2018-0264
vendor-advisory

Sources

CVE List CVE-2018-21128
NVD CVE-2018-21128

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