CVE-2018-21223: Buffer Overflow
First published: Tue Apr 28 2020(Updated: )
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, D7800 before 1.0.1.30, R6100 before 1.0.1.20, R7500 before 1.0.0.118, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netgear D3600 Firmware | <1.0.0.67 | |
| NETGEAR D3600 | ||
| Netgear D6000 Firmware | <1.0.0.67 | |
| Netgear D6000 | ||
| Netgear D7800 Firmware | <1.0.1.30 | |
| Netgear D7800 | ||
| Netgear R6100 Firmware | <1.0.1.20 | |
| Netgear R6100 | ||
| Netgear R7500 Firmware | <1.0.0.118 | |
| Netgear R7500 | ||
| Netgear R7500 Firmware | <1.0.3.24 | |
| Netgear R7500 | =v2 | |
| Netgear R9000 Firmware | <1.0.2.52 | |
| NETGEAR R9000 | ||
| Netgear Wndr3700 Firmware | <1.0.2.96 | |
| Netgear WNDR3700 | =v4 | |
| Netgear Wndr4300 Firmware | <1.0.2.98 | |
| Netgear Wndr4300 | ||
| Netgear Wndr4300 Firmware | <1.0.0.50 | |
| Netgear Wndr4300 | =v2 | |
| Netgear Wndr4500 Firmware | <1.0.0.50 | |
| Netgear WNDR4500 | =v3 | |
| Netgear Wnr2000 Firmware | <1.0.0.62 | |
| Netgear WNR2000 | =v5 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
Which NETGEAR devices are affected by CVE-2018-21223?
D3600, D6000, D7800, R6100, R7500, R7500v2, R9000, WNDR3700v4.
What is the severity of CVE-2018-21223?
The vulnerability has a severity rating of 8.8 (high).
How does CVE-2018-21223 affect NETGEAR devices?
The vulnerability allows an unauthenticated attacker to perform a buffer overflow attack on the affected NETGEAR devices.
How can I fix the CVE-2018-21223 vulnerability?
Update the firmware of the affected NETGEAR devices to the latest version provided by NETGEAR.
Where can I find more information about CVE-2018-21223?
More information about the vulnerability can be found in the following Netgear knowledge base article: https://kb.netgear.com/000055114/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2457
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/description
- agent/type
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/netgear
- canonical/netgear d3600 firmware
- canonical/netgear d3600
- canonical/netgear d6000 firmware
- canonical/netgear d6000
- canonical/netgear d7800 firmware
- canonical/netgear d7800
- canonical/netgear r6100 firmware
- canonical/netgear r6100
- canonical/netgear r7500 firmware
- canonical/netgear r7500
- version/netgear r7500/v2
- canonical/netgear r9000 firmware
- canonical/netgear r9000
- canonical/netgear wndr3700 firmware
- canonical/netgear wndr3700
- version/netgear wndr3700/v4
- canonical/netgear wndr4300 firmware
- canonical/netgear wndr4300
- version/netgear wndr4300/v2
- canonical/netgear wndr4500 firmware
- canonical/netgear wndr4500
- version/netgear wndr4500/v3
- canonical/netgear wnr2000 firmware
- canonical/netgear wnr2000
- version/netgear wnr2000/v5