What’s Vulnerable › Vulnerabilities
CVE-2018-21139
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-04-23 · updated 2026-06-17
- Weakness: CWE-200
Description
Certain NETGEAR devices are affected by disclosure of sensitive information. This affects D1500 before 1.0.0.27, D500 before 1.0.0.27, D6100 before 1.0.0.58, D6200 before 1.1.00.30, D6220 before 1.0.0.46, D6400 before 1.0.0.82, D7000 before 1.0.1.68, D7000v2 before 1.0.0.51, D7800 before 1.0.1.42, D8500 before 1.0.3.42, DC112A before 1.0.0.40, DGN2200Bv4 before 1.0.0.102, DGN2200v4 before 1.0.0.102, JNR1010v2 before 1.1.0.54, JR6150 before 1.0.1.18, JWNR2010v5 before 1.1.0.54, PR2000 before 1.0.0.24, R6020 before 1.0.0.34, R6050 before 1.0.1.18, R6080 before 1.0.0.34, R6100 before 1.0.1.22, R6120 before 1.0.0.42, R6220 before 1.1.0.68, R6250 before 1.0.4.30, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.60, R6700 before 1.0.1.48, R6700v2 before 1.2.0.24, R6800 before 1.2.0.24, R6900 before 1.0.1.48, R6900P before 1.3.1.44, R6900v2 before 1.2.0.24, R7000 before 1.0.9.34, R7000P before 1.3.1.44, R7100LG before 1.0.0.48, R7300 before 1.0.0.68, R7500 before 1.0.0.124, R7500v2 before 1.0.3.38, R7900 before 1.0.2.16, R7900P before 1.4.1.24, R8000 before 1.0.4.18, R8000P before 1.4.1.24, R8300 before 1.0.2.122, R8500 before 1.0.2.122, WN3000RP before 1.0.0.68, WN3000RPv2 before 1.0.0.68, WNDR3400v3 before 1.0.1.18, WNDR3700v4 before 1.0.2.102, WNDR3700v5 before 1.1.0.54, WNDR4300v1 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, WNR1000v4 before 1.1.0.54, WNR2020 before 1.1.0.54, WNR2050 before 1.1.0.54, and WNR3500Lv2 before 1.2.0.54.
Affected products
- NETGEAR D1500 Firmware: before 1.0.0.27 — fixed in 1.0.0.27
- NETGEAR D500 Firmware: before 1.0.0.27 — fixed in 1.0.0.27
- NETGEAR D6100 Firmware: before 1.0.0.58 — fixed in 1.0.0.58
- NETGEAR D6200 Firmware: before 1.1.00.30 — fixed in 1.1.00.30
- NETGEAR D6220 Firmware: before 1.0.0.46 — fixed in 1.0.0.46
- Netgear D6400: before 1.0.0.82 — fixed in 1.0.0.82
- NETGEAR D7000 Firmware: before 1.0.1.68; before 1.0.0.51 — fixed in 1.0.0.51, 1.0.1.68
- NETGEAR D7800 Firmware: before 1.0.1.42 — fixed in 1.0.1.42
- NETGEAR D8500 Firmware: before 1.0.3.42 — fixed in 1.0.3.42
- NETGEAR Dc112A Firmware: before 1.0.0.40 — fixed in 1.0.0.40
- NETGEAR Dgn2200 Firmware: before 1.0.0.102 — fixed in 1.0.0.102
- Netgear DGN2200B: before 1.0.0.102 — fixed in 1.0.0.102
- NETGEAR Jnr1010 Firmware: before 1.1.0.54 — fixed in 1.1.0.54
- NETGEAR JR6150: before 1.0.1.18 — fixed in 1.0.1.18
- NETGEAR Jwnr2010 Firmware: before 1.1.0.54 — fixed in 1.1.0.54
- NETGEAR Pr2000 Firmware: before 1.0.0.24 — fixed in 1.0.0.24
- NETGEAR R6020 Firmware: before 1.0.0.34 — fixed in 1.0.0.34
- NETGEAR R6050 Firmware: before 1.0.1.18 — fixed in 1.0.1.18
- NETGEAR R6080 Firmware: before 1.0.0.34 — fixed in 1.0.0.34
- NETGEAR R6100 Firmware: before 1.0.1.22 — fixed in 1.0.1.22
- NETGEAR R6120 Firmware: before 1.0.0.42 — fixed in 1.0.0.42
- NETGEAR R6220 Firmware: before 1.1.0.68 — fixed in 1.1.0.68
- NETGEAR R6250 Firmware: before 1.0.4.30 — fixed in 1.0.4.30
- NETGEAR R6300 Firmware: before 1.0.4.32 — fixed in 1.0.4.32
- NETGEAR R6400 Firmware: before 1.0.1.44; before 1.0.2.60 — fixed in 1.0.1.44, 1.0.2.60
- NETGEAR R6700: before 1.0.1.48; before 1.2.0.24 — fixed in 1.0.1.48, 1.2.0.24
- NETGEAR R6800 Firmware: before 1.2.0.24 — fixed in 1.2.0.24
- NETGEAR R6900 Firmware: before 1.0.1.48; before 1.2.0.24 — fixed in 1.0.1.48, 1.2.0.24
- NETGEAR R6900P Firmware: before 1.3.1.44 — fixed in 1.3.1.44
- NETGEAR R7000: before 1.0.9.34 — fixed in 1.0.9.34
How to fix
Upgrade to a fixed version: NETGEAR D1500 Firmware 1.0.0.27; NETGEAR D500 Firmware 1.0.0.27; NETGEAR D6100 Firmware 1.0.0.58; NETGEAR D6200 Firmware 1.1.00.30; NETGEAR D6220 Firmware 1.0.0.46; Netgear D6400 1.0.0.82; NETGEAR D7000 Firmware 1.0.0.51, 1.0.1.68; NETGEAR D7800 Firmware 1.0.1.42; NETGEAR D8500 Firmware 1.0.3.42; NETGEAR Dc112A Firmware 1.0.0.40; NETGEAR Dgn2200 Firmware 1.0.0.102; Netgear DGN2200B 1.0.0.102. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000060220/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-Smart-Cradles-PSV-2017-2198
- https://kb.netgear.com/000060220/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-Smart-Cradles-PSV-2017-2198
Get alerted when CVE-2018-21139 or the next vulnerability affects your stack