Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.

published 2020-04-28 6y ago modified 2026-06-17 4mo ago also EUVD-2018-13726

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Patch / fix

fixed in 5

netgear d6100_firmware 1.0.0.57
netgear r6100_firmware 1.0.1.20
netgear r7500_firmware 1.0.3.24
netgear wndr4300_firmware 1.0.0.50
netgear wndr4500_firmware 1.0.0.50

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Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% 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-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

kb.netgear.com /000055141/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2017-25
vendor-advisory

Sources

CVE List CVE-2018-21208
NVD CVE-2018-21208

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