What’s Vulnerable › Vulnerabilities
CVE-2021-45534
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-12-26 · updated 2026-06-17
- Weakness: CWE-77
Description
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects AC2100 before 1.2.0.88, AC2400 before 1.2.0.88, AC2600 before 1.2.0.88, D7000 before 1.0.1.82, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.84, R6330 before 1.1.0.84, R6350 before 1.1.0.84, R6700v2 before 1.2.0.88, R6800 before 1.2.0.88, R6850 before 1.1.0.84, R6900v2 before 1.2.0.88, R7200 before 1.2.0.88, R7350 before 1.2.0.88, R7400 before 1.2.0.88, and R7450 before 1.2.0.88.
Affected products
- NETGEAR Ac2100 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR Ac2400 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR Ac2600 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR D7000 Firmware: before 1.0.1.82 — fixed in 1.0.1.82
- NETGEAR R6220 Firmware: before 1.1.0.110 — fixed in 1.1.0.110
- NETGEAR R6230 Firmware: before 1.1.0.110 — fixed in 1.1.0.110
- NETGEAR R6260: before 1.1.0.84 — fixed in 1.1.0.84
- NETGEAR R6330 Firmware: before 1.1.0.84 — fixed in 1.1.0.84
- NETGEAR R6350 Firmware: before 1.1.0.84 — fixed in 1.1.0.84
- NETGEAR R6700V2 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R6800 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R6850 Firmware: before 1.1.0.84 — fixed in 1.1.0.84
- NETGEAR R6900V2 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R7200 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R7350 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R7400 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
- NETGEAR R7450 Firmware: before 1.2.0.88 — fixed in 1.2.0.88
How to fix
Upgrade to a fixed version: NETGEAR Ac2100 Firmware 1.2.0.88; NETGEAR Ac2400 Firmware 1.2.0.88; NETGEAR Ac2600 Firmware 1.2.0.88; NETGEAR D7000 Firmware 1.0.1.82; NETGEAR R6220 Firmware 1.1.0.110; NETGEAR R6230 Firmware 1.1.0.110; NETGEAR R6260 1.1.0.84; NETGEAR R6330 Firmware 1.1.0.84; NETGEAR R6350 Firmware 1.1.0.84; NETGEAR R6700V2 Firmware 1.2.0.88; NETGEAR R6800 Firmware 1.2.0.88; NETGEAR R6850 Firmware 1.1.0.84. Check the vendor advisory for mitigations.
References
- https://immersivelabs.com/resources/blog/netgear-vulnerabilities-could-put-small-business-routers-at-risk/
- https://kb.netgear.com/000064406/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-DSL-Modem-Routers-PSV-2021-0172
- https://immersivelabs.com/resources/blog/netgear-vulnerabilities-could-put-small-business-routers-at-risk/
- https://kb.netgear.com/000064406/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-DSL-Modem-Routers-PSV-2021-0172
Get alerted when CVE-2021-45534 or the next vulnerability affects your stack