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

published 2021-12-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32384

cvss: 9.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.0%; EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits: 0; none known

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.64, EX6200v2 before 1.0.1.86, EX6250 before 1.0.0.134, EX7700 before 1.0.0.216, EX8000 before 1.0.1.232, LBR20 before 2.6.3.50, R7800 before 1.0.2.80, R8900 before 1.0.5.26, R9000 before 1.0.5.26, RAX120 before 1.2.0.16, RBS50Y before 1.0.0.56, WNR2000v5 before 1.0.0.76, XR450 before 2.3.2.114, XR500 before 2.3.2.114, XR700 before 1.0.1.36, EX6150v2 before 1.0.1.98, EX7300 before 1.0.2.158, EX7320 before 1.0.0.134, EX6100v2 before 1.0.1.98, EX6400 before 1.0.2.158, EX7300v2 before 1.0.0.134, EX6410 before 1.0.0.134, RBR10 before 2.6.1.44, RBR20 before 2.6.2.104, RBR40 before 2.6.2.104, RBR50 before 2.7.2.102, EX6420 before 1.0.0.134, RBS10 before 2.6.1.44, RBS20 before 2.6.2.104, RBS40 before 2.6.2.104, RBS50 before 2.7.2.102, EX6400v2 before 1.0.0.134, RBK12 before 2.6.1.44, RBK20 before 2.6.2.104, RBK40 before 2.6.2.104, and RBK50 before 2.7.2.102.

Patch / fix

fixed in 20

netgear d7800_firmware 1.0.1.64
netgear ex6200v2_firmware 1.0.1.86
netgear ex6250_firmware 1.0.0.134
netgear ex7700_firmware 1.0.0.216
netgear ex8000_firmware 1.0.1.232
netgear lbr20_firmware 2.6.3.50
netgear r7800_firmware 1.0.2.80
netgear r8900_firmware 1.0.5.26
netgear r9000_firmware 1.0.5.26
netgear rax120_firmware 1.2.0.16
netgear rbs50y_firmware 1.0.0.56
netgear wnr2000v5_firmware 1.0.0.76
netgear xr450_firmware 2.3.2.114
netgear xr500_firmware 2.3.2.114
netgear xr700_firmware 1.0.1.36
netgear ex6150v2_firmware 1.0.1.98
netgear ex7300_firmware 1.0.2.158
netgear ex7320_firmware 1.0.0.134
netgear ex6100v2_firmware 1.0.1.98
netgear ex6400_firmware 1.0.2.158

Exploit prediction

2.02% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

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	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command

References

kb.netgear.com /000064490/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-Extenders-and-WiFi-Syste
vendor-advisory

Sources

CVE List CVE-2021-45618
NVD CVE-2021-45618

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