Certain NETGEAR devices are affected by command injection by an authenticated user.

published 2021-12-26 4y ago modified 2026-06-17 4mo ago also EUVD-2021-32311

cvss: 8.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7850 before 1.0.5.74, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.4.120, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, and RBS850 before 3.2.17.12.

Patch / fix

fixed in 11

netgear r7850_firmware 1.0.5.74
netgear r7900p_firmware 1.4.2.84
netgear r7960p_firmware 1.4.2.84
netgear r8000_firmware 1.0.4.74
netgear r8000p_firmware 1.4.2.84
netgear rax200_firmware 1.0.4.120
netgear rax75_firmware 1.0.4.120
netgear rax80_firmware 1.0.4.120
netgear rbk852_firmware 3.2.17.12
netgear rbr850_firmware 3.2.17.12
netgear rbs850_firmware 3.2.17.12

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Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.4	CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:C/UI:N
CNA	3.1	8.4	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	6.8	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.2	AV:A/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

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

References

kb.netgear.com /000064522/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-20
vendor-advisory

Sources

CVE List CVE-2021-45545
NVD CVE-2021-45545

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