CVEvulnerability

CVE-2017-5521

8.1 HIGH Known exploited Published 2017-01-17 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability — NETGEAR Multiple Devices

Multiple NETGEAR devices are prone to admin password disclosure via simple crafted requests to the web management server.

Added to KEV
2022-09-08
Remediation due
2022-09-29
Ransomware use
Unknown
Required action
Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
Notes
https://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability; https://nvd.nist.gov/vuln/detail/CVE-2017-5521
Status
Analyzed
Published
2017-01-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N

Description

An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices. They are prone to password disclosure via simple crafted requests to the web management server. The bug is exploitable remotely if the remote management option is set, and can also be exploited given access to the router over LAN or WLAN. When trying to access the web panel, a user is asked to authenticate; if the authentication is canceled and password recovery is not enabled, the user is redirected to a page that exposes a password recovery token. If a user supplies the correct token to the page /passwordrecovered.cgi?id=TOKEN (and password recovery is not enabled), they will receive the admin password for the router. If password recovery is set the exploit will fail, as it will ask the user for the recovery questions that were previously set when enabling that feature. This is persistent (even after disabling the recovery option, the exploit will fail) because the router will ask for the security questions.

Affected configurations

• netgear r6200 firmware 1.0.1.56 1.0.43 • netgear r6300 firmware 1.0.2.78 1.0.58 • netgear vegn2610 firmware 1.0.0.36 • netgear ac1450 firmware 1.0.0.34 10.0.16 • netgear wnr1000v3 firmware 1.0.2.68 60.0.93 • netgear wndr3700v3 firmware 1.0.0.40 1.0.32 • netgear wndr4000 firmware 1.0.2.4 9.1.86 • netgear wndr4500 firmware 1.0.1.44 1.0.73 • netgear d6400 firmware 1.0.0.44 • netgear d6220 firmware 1.0.0.12 • netgear d6300 firmware 1.0.0.96 • netgear d6300b firmware 1.0.0.40 • netgear dgn2200bv4 firmware 1.0.0.68

References