Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 89.4%; technical severity is CVSS 8.1.
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.
Who should care
- Teams operating Ac1450 Firmware, D6220 Firmware, D6300 Firmware +11 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Ac1450 Firmware, D6220 Firmware, D6300 Firmware +11 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-200
- Affected versions
- Netgear Ac1450 Firmware (Version 1.0.0.34 10.0.16); Netgear D6220 Firmware (Version 1.0.0.12); Netgear D6300 Firmware (Version 1.0.0.96); Netgear D6300b Firmware (Version 1.0.0.40); Netgear D6400 Firmware (Version 1.0.0.44); Netgear Dgn2200bv4 Firmware (Version 1.0.0.68); Netgear Multiple Devices; Netgear R6200 Firmware (Version 1.0.1.56 1.0.43)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 17 January 2017
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 89.4%
- Signal calculated at 82