high
8.8
CWE
787 119
Advisory Published
Updated

CVE-2019-20753: Buffer Overflow

First published: Thu Apr 16 2020(Updated: )

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects DGN2200v1 before 1.0.0.58, D8500 before 1.0.3.42, D7000v2 before 1.0.0.51, D6400 before 1.0.0.78, D6220 before 1.0.0.44, JNDR3000 before 1.0.0.24, R8000 before 1.0.4.18, R8500 before 1.0.2.122, R8300 before 1.0.2.122, R7900 before 1.0.2.16, R7000P before 1.3.2.34, R7300DST before 1.0.0.68, R7100LG before 1.0.0.46, R6900P before 1.3.2.34, R7000 before 1.0.9.28, R6900 before 1.0.1.46, R6700 before 1.0.1.46, R6400v2 before 1.0.2.56, R6400 before 1.0.1.42, R6300v2 before 1.0.4.28, R6250 before 1.0.4.26, WNDR3400v3 before 1.0.1.22, WNDR4500v2 before 1.0.0.72, and WNR3500Lv2 before 1.2.0.50.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
NETGEAR DGN2200B firmware<1.0.0.58
NETGEAR DGN2200M=v1
Netgear D8500 Firmware<1.0.3.42
Netgear D8500 Firmware
NETGEAR D7000v1 firmware<1.0.0.51
NETGEAR D7000 firmware=v2
NETGEAR D6400<1.0.0.78
NETGEAR D6400 firmware
Netgear D6220 Firmware<1.0.0.44
NETGEAR D6220 firmware
NETGEAR JNDR3000<1.0.0.24
NETGEAR JNDR3000 firmware
NETGEAR R8000 firmware<1.0.4.18
NETGEAR R8000 firmware
NETGEAR R8500<1.0.2.122
NETGEAR R8500
NETGEAR R8300 firmware<1.0.2.122
NETGEAR R8300 firmware
NETGEAR R7900P firmware<1.0.2.16
NETGEAR R7900P firmware
NETGEAR R7000P firmware<1.3.2.34
Netgear Routers
NETGEAR R7300DST firmware<1.0.0.68
NETGEAR R7300DST firmware
NETGEAR R7100LG firmware<1.0.0.46
Netgear R7100LG
NETGEAR R6900P Firmware<1.3.2.34
Netgear R6900 Firmware
NETGEAR Nighthawk R7000<1.0.9.28
NETGEAR Nighthawk R7000
Netgear R6900 Firmware<1.0.1.46
Netgear R6900 Firmware
NETGEAR R6700 firmware<1.0.1.46
NETGEAR R6700v1 firmware
NETGEAR R6400 firmware<1.0.2.56
NETGEAR R6400 firmware=v2
NETGEAR R6400 firmware<1.0.1.42
NETGEAR R6400 firmware
NETGEAR R6300 firmware<1.0.4.28
NETGEAR R6300 firmware=v2
Netgear R6250 Firmware<1.0.4.26
NETGEAR R6250
NETGEAR WNDR3400<1.0.1.22
NETGEAR WNDR3400 firmware=v3
NETGEAR WNDR4500 firmware<1.0.0.72
NETGEAR WNDR4500v3=v2
NETGEAR WNR3500L<1.2.0.50
NETGEAR WNR3500L firmware=v2

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-20753?

    CVE-2019-20753 is a vulnerability that allows an unauthenticated attacker to perform a stack-based buffer overflow on certain NETGEAR devices.

  • Which NETGEAR devices are affected by CVE-2019-20753?

    The following NETGEAR devices are affected by CVE-2019-20753: DGN2200v1, D8500, D7000v2, D6400, D6220, JNDR3000, R8000, R8500, R8300, R7900, R7000p, R7300dst, R7100lg, R6900p, R7000, R6900, R6700, R6400, R6300, R6250, Wndr3400, and Wndr4500.

  • How severe is CVE-2019-20753?

    CVE-2019-20753 has a severity rating of 8.8 (high).

  • How can I fix the CVE-2019-20753 vulnerability?

    To fix the CVE-2019-20753 vulnerability, you should update the firmware of the affected NETGEAR devices to the latest version provided by NETGEAR.

  • Where can I find more information about CVE-2019-20753?

    You can find more information about CVE-2019-20753 on the NETGEAR security advisory page: https://kb.netgear.com/000060629/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Modem-Routers-PSV-2018-0085

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