PT-2021-5944 · NetGear · Netgear R7000

Published 2021-12-20 · Updated 2022-01-04 · CVE-2021-45523

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions NETGEAR R7000 versions prior to 1.0.9.42

Description The issue is related to a buffer overflow due to the lack of input size validation in the Wi-Fi router's firmware. This can allow a remote attacker to gain unauthorized access to protected information. The exploitation requires an authenticated user.

Recommendations For versions prior to 1.0.9.42, update to version 1.0.9.42 or later to resolve the issue. As a temporary workaround, consider restricting access to the router's interface to minimize the risk of exploitation.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-00459

CVE-2021-45523

Affected Products

Netgear R7000

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-45523 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45523 · Vendor Advisory
• https://kb.netgear.com/000064442/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-R7000-PSV-2018-0418 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00459 · Security Note
• https://t.me/cibsecurity/34635 · Telegram Post