critical
9.8
CWE
120 119
Advisory Published
Updated

CVE-2018-21153: Buffer Overflow

First published: Mon Apr 27 2020(Updated: )

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, EX2700 before 1.0.1.32, EX6100v2 before 1.0.1.70, EX6150v2 before 1.0.1.70, EX6200v2 before 1.0.1.62, EX6400 before 1.0.1.78, EX7300 before 1.0.1.62, EX8000 before 1.0.0.114, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WN2000RPTv3 before 1.0.1.26, WN3000RPv2 before 1.0.0.56, WN3000RPv3 before 1.0.2.66, WN3100RPv2 before 1.0.0.56, 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 SoftwareAffected VersionHow to fix
Netgear D7800 Firmware<1.0.1.34
Netgear D7800
Netgear Dm200 Firmware<1.0.0.50
Netgear Dm200
Netgear Ex2700 Firmware<1.0.1.32
Netgear Ex2700
Netgear Ex6100 Firmware<1.0.1.70
Netgear EX6100=v2
NETGEAR R7800<1.0.1.70
Netgear Ex6150=v2
Netgear Ex6200 Firmware<1.0.1.62
Netgear EX6200=v2
Netgear Ex6400 Firmware<1.0.1.78
Netgear Ex6400
Netgear Ex7300 Firmware<1.0.1.62
Netgear Ex7300
NETGEAR R7800<1.0.0.114
Netgear Ex8000
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<1.0.2.40
NETGEAR R7800
Netgear R8900 Firmware<1.0.3.10
NETGEAR R8900
Netgear R9000 Firmware<1.0.3.10
NETGEAR R9000
Netgear Wn2000rpt Firmware<1.0.1.26
Netgear Wn2000rpt=v3
Netgear Wn3000rp Firmware<1.0.0.56
Netgear Wn3000rp=v2
Netgear Wn3000rp Firmware<1.0.2.66
Netgear Wn3000rp
Netgear Wn3100rp Firmware<1.0.0.56
Netgear Wn3100rp=v2
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-2018-21153?

    The severity of CVE-2018-21153 is critical with a severity value of 9.8.

  • Which NETGEAR devices are affected by CVE-2018-21153?

    NETGEAR devices D7800, DM200, EX2700, EX6100v2, EX6150v2, EX6200v2, EX6400, EX7300, Ex8000, R6100, R7500, R7800, R8900, R9000, Wn2000rpt, Wn3000rp, Wn3100rp, Wndr4300, Wndr4500, and Wnr2000 are affected by CVE-2018-21153.

  • How does CVE-2018-21153 affect NETGEAR devices?

    CVE-2018-21153 allows an unauthenticated attacker to perform a buffer overflow on certain NETGEAR devices.

  • Where can I find more information about CVE-2018-21153?

    You can find more information about CVE-2018-21153 in the following Netgear Knowledge Base article: [Link](https://kb.netgear.com/000059480/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Gateways-Routers-and-Extenders-PSV-2017-3136).

  • How can I fix CVE-2018-21153?

    To fix CVE-2018-21153, make sure you update your NETGEAR devices to the latest firmware versions.

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