CVE-2018-21193: Buffer Overflow
First published: Tue Apr 28 2020(Updated: )
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 1.0.1.34, R6100 before 1.0.1.20, R7500 before 1.0.0.122, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, 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 D6100 Firmware | <1.0.0.57 | |
| NETGEAR D6100 | ||
| Netgear D7800 Firmware | <1.0.1.34 | |
| Netgear D7800 | ||
| Netgear R6100 Firmware | <1.0.1.20 | |
| Netgear R6100 | ||
| Netgear R7500 Firmware | <1.0.0.122 | |
| Netgear R7500 | ||
| Netgear R7500 Firmware | <1.0.3.24 | |
| Netgear R7500 | =v2 | |
| NETGEAR R7800 firmware | <1.0.2.40 | |
| NETGEAR R7800 | ||
| Netgear Wndr3700 Firmware | <1.0.2.92 | |
| Netgear WNDR3700 | =v4 | |
| Netgear Wndr4300 Firmware | <1.0.2.94 | |
| 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-2018-21193?
NETGEAR D6100, NETGEAR D7800, NETGEAR R6100, NETGEAR R7500, NETGEAR R7500v2, NETGEAR R7800, NETGEAR WNDR3700v4, NETGEAR WNDR4300, NETGEAR WNDR4300v2, NETGEAR WNDR4500v3, NETGEAR WNR2000v5 are affected.
What is the severity of CVE-2018-21193?
The severity of CVE-2018-21193 is medium, with a CVSS score of 6.8.
What is the vulnerability type of CVE-2018-21193?
CVE-2018-21193 is a stack-based buffer overflow vulnerability.
How can I fix CVE-2018-21193?
Apply the latest firmware update provided by NETGEAR to fix CVE-2018-21193.
Where can I find more information about CVE-2018-21193?
You can find more information about CVE-2018-21193 on the NETGEAR knowledge base: https://kb.netgear.com/000055164/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2602
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/tags
- agent/description
- agent/type
- agent/event
- agent/first-publish-date
- agent/softwarecombine
- agent/last-modified-date
- vendor/netgear
- canonical/netgear d6100 firmware
- canonical/netgear d6100
- 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 r7800 firmware
- canonical/netgear r7800
- 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