PT-2020-8816 · NetGear · Netgear R7800+6

Mongo · Published 2020-04-27 · Updated 2020-05-01 · CVE-2018-21172

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions NETGEAR R7800 versions prior to 1.0.2.40 NETGEAR R9000 versions prior to 1.0.2.52 NETGEAR WNDR3700v4 versions prior to 1.0.2.92 NETGEAR WNDR4300 versions prior to 1.0.2.94 NETGEAR WNDR4300v2 versions prior to 1.0.0.50 NETGEAR WNDR4500v3 versions prior to 1.0.0.50 NETGEAR WNR2000v5 versions prior to 1.0.0.62

Description The issue is a stack-based buffer overflow that can be exploited by an authenticated user. This can potentially allow unauthorized access or control of the affected devices.

Recommendations For NETGEAR R7800 version prior to 1.0.2.40, update to version 1.0.2.40 or later. For NETGEAR R9000 version prior to 1.0.2.52, update to version 1.0.2.52 or later. For NETGEAR WNDR3700v4 version prior to 1.0.2.92, update to version 1.0.2.92 or later. For NETGEAR WNDR4300 version prior to 1.0.2.94, update to version 1.0.2.94 or later. For NETGEAR WNDR4300v2 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNDR4500v3 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For NETGEAR WNR2000v5 version prior to 1.0.0.62, update to version 1.0.0.62 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-21172

Affected Products

Netgear R7800

Netgear R9000

Netgear Wndr3700V4

Netgear Wndr4300

Netgear Wndr4300V2

Netgear Wndr4500V3

Netgear Wnr2000V5

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2018-21172 · Security Note
• https://kb.netgear.com/000055186/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2631 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-21172 · Vendor Advisory
• https://t.me/cvenotify/3276 · Telegram Post