What’s Vulnerable › Vulnerabilities

CVE-2018-21184

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-28 · updated 2026-06-17
• Weakness: CWE-787

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, D7800 before 1.0.1.28, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, and R9000 before 1.0.3.6.

Affected products

• NETGEAR D6100 Firmware: before 1.0.0.57 — fixed in 1.0.0.57
• NETGEAR D7800 Firmware: before 1.0.1.28 — fixed in 1.0.1.28
• NETGEAR R7500 Firmware: before 1.0.3.24 — fixed in 1.0.3.24
• NETGEAR R7800 Firmware: before 1.0.2.40 — fixed in 1.0.2.40
• NETGEAR R9000 Firmware: before 1.0.3.6 — fixed in 1.0.3.6

How to fix

Upgrade to a fixed version: NETGEAR D6100 Firmware 1.0.0.57; NETGEAR D7800 Firmware 1.0.1.28; NETGEAR R7500 Firmware 1.0.3.24; NETGEAR R7800 Firmware 1.0.2.40; NETGEAR R9000 Firmware 1.0.3.6. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000055174/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2615
• https://kb.netgear.com/000055174/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2615

Get alerted when CVE-2018-21184 or the next vulnerability affects your stack