CVE-2018-21197: 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 D7800 before 1.0.1.34, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R9000 before 1.0.2.52, 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 D7800 Firmware | <1.0.1.34 | |
| Netgear D7800 | ||
| Netgear R6100 Firmware | <1.0.1.22 | |
| Netgear R6100 | ||
| Netgear R7500 Firmware | <1.0.3.26 | |
| Netgear R7500 | =v2 | |
| NETGEAR R7800 firmware | <1.0.2.40 | |
| NETGEAR R7800 | ||
| Netgear R9000 Firmware | <1.0.2.52 | |
| NETGEAR R9000 | ||
| 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 | |
| Netgear R7500 Firmware | <1.0.0.122 | |
| Netgear R7500 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-21197?
CVE-2018-21197 is a vulnerability that affects certain NETGEAR devices, allowing an authenticated user to perform a stack-based buffer overflow.
Which devices are affected by CVE-2018-21197?
CVE-2018-21197 affects D7800 before 1.0.1.34, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.94.
What is the severity of CVE-2018-21197?
CVE-2018-21197 has a severity rating of 6.8 (medium).
How can an authenticated user exploit CVE-2018-21197?
An authenticated user can exploit CVE-2018-21197 by performing a stack-based buffer overflow attack.
Is there a fix available for CVE-2018-21197?
Yes, there are firmware updates available for the affected NETGEAR devices to fix CVE-2018-21197. Please refer to the NETGEAR advisory for more information.
- collector/nvd-index
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/tags
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/last-modified-date
- agent/first-publish-date
- vendor/netgear
- 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 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