CVE-2018-21203: Buffer Overflow
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6100 before 1.0.1.20, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2018-21203?
CVE-2018-21203 is a vulnerability that affects certain NETGEAR devices and allows an unauthenticated attacker to perform a stack-based buffer overflow.
Which NETGEAR devices are affected by CVE-2018-21203?
CVE-2018-21203 affects the following NETGEAR devices: R6100 (before 1.0.1.20), R9000 (before 1.0.2.52), WNDR3700v4 (before 1.0.2.96), WNDR4300 (before 1.0.2.98), WNDR4300v2 (before 1.0.0.50), and WNDR4500v3 (before 1.0.0.50).
What is the severity of CVE-2018-21203?
CVE-2018-21203 has a severity rating of 8.8 (High).
How can I fix CVE-2018-21203?
To fix CVE-2018-21203, it is recommended to update the firmware of the affected NETGEAR devices to the latest version available.
Where can I find more information about CVE-2018-21203?
You can find more information about CVE-2018-21203 in the Netgear security advisory at the following link: [https://kb.netgear.com/000055146/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2589](https://kb.netgear.com/000055146/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2589)