CVE-2018-21148: Buffer Overflow
First published: Tue Apr 21 2020(Updated: )
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netgear D7800 Firmware | <1.0.1.34 | |
| Netgear D7800 | ||
| Netgear Dm200 Firmware | <1.0.0.50 | |
| Netgear Dm200 | ||
| Netgear R6100 Firmware | <1.0.1.22 | |
| Netgear R6100 | ||
| Netgear R7500 Firmware | <1.0.0.122 | |
| Netgear R7500 | ||
| Netgear R7500 Firmware | <1.0.3.26 | |
| Netgear R7500 | =v2 | |
| NETGEAR R7800 firmware | <1.0.2.42 | |
| NETGEAR R7800 | ||
| Netgear R8900 Firmware | <1.0.3.10 | |
| NETGEAR R8900 | ||
| Netgear R9000 Firmware | <1.0.3.10 | |
| NETGEAR R9000 | ||
| Netgear Wndr3700 Firmware | <1.0.2.96 | |
| Netgear WNDR3700 | =v4 | |
| Netgear Wndr4300 Firmware | <1.0.2.98 | |
| Netgear Wndr4300 | ||
| Netgear Wndr4300 Firmware | <1.0.0.54 | |
| Netgear Wndr4300 | =v2 | |
| Netgear Wndr4500 Firmware | <1.0.0.54 | |
| Netgear WNDR4500 | =v3 | |
| Netgear Wnr2000 Firmware | <1.0.0.64 | |
| Netgear WNR2000 | =v5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-21148?
The severity of CVE-2018-21148 is medium with a severity value of 6.8.
Which NETGEAR devices are affected by CVE-2018-21148?
NETGEAR devices D7800, DM200, R6100, R7500, R7500v2, R7800, R8900, and R9000 are affected by CVE-2018-21148.
How can I fix CVE-2018-21148?
To fix CVE-2018-21148, update the firmware of your NETGEAR device to the patched version provided by the manufacturer.
Where can I find more information about CVE-2018-21148?
You can find more information about CVE-2018-21148 in the security advisory posted by NETGEAR [here](https://kb.netgear.com/000059485/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Gateways-and-Routers-PSV-2017-3157).
What is the Common Weakness Enumeration (CWE) associated with CVE-2018-21148?
The Common Weakness Enumeration (CWE) associated with CVE-2018-21148 are CWE-119 and CWE-787.
- collector/nvd-index
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/netgear
- canonical/netgear d7800 firmware
- canonical/netgear d7800
- canonical/netgear dm200 firmware
- canonical/netgear dm200
- 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 r8900 firmware
- canonical/netgear r8900
- 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