What’s Vulnerable › Vulnerabilities
CVE-2021-45548
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.0% 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 D7800 before 1.0.1.60, DM200 before 1.0.0.66, EX2700 before 1.0.1.56, EX6150v2 before 1.0.1.86, EX6200v2 before 1.0.1.86, EX6250 before 1.0.0.128, EX6400 before 1.0.2.144, EX6400v2 before 1.0.0.128, EX6410 before 1.0.0.128, EX6420 before 1.0.0.128, EX7300 before 1.0.2.144, EX7300v2 before 1.0.0.128, EX7320 before 1.0.0.128, R7500v2 before 1.0.3.46, R7800 before 1.0.2.74, R8900 before 1.0.5.26, R9000 before 1.0.5.2, RAX120 before 1.0.1.128, WN3000RPv2 before 1.0.0.78, WN3000RPv3 before 1.0.2.80, WNR2000v5 before 1.0.0.74, XR500 before 2.3.2.66, RBK20 before 2.7.3.22, RBR20 before 2.7.3.22, RBS20 before 2.7.3.22, RBK40 before 2.7.3.22, RBR40 before 2.7.3.22, and RBS40 before 2.7.3.22.
Affected products
- NETGEAR D7800 Firmware: before 1.0.1.60 — fixed in 1.0.1.60
- NETGEAR Dm200 Firmware: before 1.0.0.66 — fixed in 1.0.0.66
- NETGEAR Ex2700 Firmware: before 1.0.1.56 — fixed in 1.0.1.56
- NETGEAR Ex6150V2 Firmware: before 1.0.1.86 — fixed in 1.0.1.86
- NETGEAR Ex6200V2 Firmware: before 1.0.1.86 — fixed in 1.0.1.86
- NETGEAR Ex6250 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR Ex6400 Firmware: before 1.0.2.144 — fixed in 1.0.2.144
- NETGEAR Ex6400V2 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR Ex6410 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR Ex6420 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR Ex7300 Firmware: before 1.0.2.144 — fixed in 1.0.2.144
- NETGEAR Ex7300V2 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR Ex7320 Firmware: before 1.0.0.128 — fixed in 1.0.0.128
- NETGEAR R7500V2 Firmware: before 1.0.3.46 — fixed in 1.0.3.46
- NETGEAR R7800 Firmware: before 1.0.2.74 — fixed in 1.0.2.74
- NETGEAR R8900 Firmware: before 1.0.5.26 — fixed in 1.0.5.26
- NETGEAR R9000 Firmware: before 1.0.5.2 — fixed in 1.0.5.2
- NETGEAR Rax120 Firmware: before 1.0.1.128 — fixed in 1.0.1.128
- NETGEAR Rbk20 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Rbk40 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Rbr20 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Rbr40 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Rbs20 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Rbs40 Firmware: before 2.7.3.22 — fixed in 2.7.3.22
- NETGEAR Wn3000Rpv2 Firmware: before 1.0.0.78 — fixed in 1.0.0.78
- NETGEAR Wn3000Rpv3 Firmware: before 1.0.2.80 — fixed in 1.0.2.80
- NETGEAR Wnr2000V5 Firmware: before 1.0.0.74 — fixed in 1.0.0.74
- NETGEAR Xr500 Firmware: before 2.3.2.66 — fixed in 2.3.2.66
How to fix
Upgrade to a fixed version: NETGEAR D7800 Firmware 1.0.1.60; NETGEAR Dm200 Firmware 1.0.0.66; NETGEAR Ex2700 Firmware 1.0.1.56; NETGEAR Ex6150V2 Firmware 1.0.1.86; NETGEAR Ex6200V2 Firmware 1.0.1.86; NETGEAR Ex6250 Firmware 1.0.0.128; NETGEAR Ex6400 Firmware 1.0.2.144; NETGEAR Ex6400V2 Firmware 1.0.0.128; NETGEAR Ex6410 Firmware 1.0.0.128; NETGEAR Ex6420 Firmware 1.0.0.128; NETGEAR Ex7300 Firmware 1.0.2.144; NETGEAR Ex7300V2 Firmware 1.0.0.128. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000064450/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2019-0207
- https://kb.netgear.com/000064450/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2019-0207
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