Certain NETGEAR devices are affected by authentication bypass.

published 2020-10-09 6y ago modified 2026-06-17 4mo ago also EUVD-2020-19458

cvss: 9.6; 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 53%
public exploits: 0; none known

Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.10, RBK752 before 3.2.15.25, RBR750 before 3.2.15.25, RBS750 before 3.2.15.25, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.

Patch / fix

fixed in 7

netgear cbr40_firmware 2.5.0.10
netgear rbk752_firmware 3.2.15.25
netgear rbk852_firmware 3.2.10.11
netgear rbr750_firmware 3.2.15.25
netgear rbr850_firmware 3.2.10.11
netgear rbs750_firmware 3.2.15.25
netgear rbs850_firmware 3.2.10.11

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Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.6	CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N
CNA	3.1	9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

References

kb.netgear.com /000062324/Security-Advisory-for-Authentication-Bypass-on-Some-WiFi-Systems-PSV-2020-0027
vendor-advisory

Sources

CVE List CVE-2020-26928
NVD CVE-2020-26928

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