Netgear Wndr4700 Vulnerabilities & CVEs | ProbeShield

Known CVEs

CVE-2016-10174CRITICAL (9.8)CISA KEV

The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achie...

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3073CRITICAL (9.8)

A Symlink Traversal vulnerability exists in NETGEAR Centria WNDR4700 Firmware 1.0.0.34.

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3072CRITICAL (9.8)

An Authentication Bypass vulnerability exists in NETGEAR Centria WNDR4700 Firmware 1.0.0.34 in http://<router_ip>/apply.cgi?/hdd_usr_setup.htm that when visited by any user, authenticated or not, causes the router to ...

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3071CRITICAL (9.8)

NETGEAR Centria WNDR4700 devices with firmware 1.0.0.34 allow authentication bypass.

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3070HIGH (7.5)

An Information Disclosure vulnerability exists in Netgear WNDR4700 running firmware 1.0.0.34 in the management web interface, which discloses the PSK of the wireless LAN.

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3074HIGH (7.5)

NetGear WNDR4700 Media Server devices with firmware 1.0.0.34 allow remote attackers to cause a denial of service (device crash).

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

CVE-2013-3069LOW (3.5)

Multiple cross-site scripting (XSS) vulnerabilities in NETGEAR WNDR4700 with firmware 1.0.0.34 allow remote authenticated users to inject arbitrary web script or HTML via the (1) UserName or (2) Password to the NAS Us...

Affected: Not version-specific per NVD — check the advisoryFixed in: See vendor advisory

Commonly exposed ports

Port 23 (Telnet) — Sends admin credentials unencrypted — a common target on older router firmware.
Port 80 (HTTP admin panel) — The web admin UI; dangerous if remote/WAN administration is left enabled.
Port 7547 (TR-069 (CWMP)) — ISP remote-management protocol — has been the entry point for several router botnets.
Port 1900 (UPnP/SSDP) — Lets apps on your LAN open firewall holes automatically, sometimes without your knowledge.

Default credentials

From ProbeShield's own tested default-credential list (see probeshield.com/default-passwords/): "netgear" / "password" or "admin" / "netgear1" or "admin" / "password123" over HTTP.

Hardening checklist

Disable remote (WAN-side) administration unless you specifically need it.
Turn off UPnP unless a specific app you trust requires it.
Turn off WPS — it can let an attacker bypass your Wi-Fi password.
Change the default admin username and password to something unique.
Check for a firmware update in the router’s admin panel and apply it.
Disable Telnet/SSH management access if you don’t actively use it.

Frequently asked questions

Is my Netgear Wndr4700 affected by these vulnerabilities? Only if you’re running a firmware version in the affected range listed above and haven’t updated. Check your router's admin panel for its current firmware version and compare it against the ranges below.

How do I update my Netgear Wndr4700's firmware? Log into the router's web admin panel (usually at its local IP address) and look for a Firmware Update or System Update section, or use the vendor's mobile app if it has one.

Does ProbeShield fix these vulnerabilities for me? No — ProbeShield scans your network and tells you what it finds (open ports, default credentials, outdated firmware signals) so you know what to fix, and how. It never changes your devices’ settings.

Sources: National Vulnerability Database (NVD), CISA Known Exploited Vulnerabilities Catalog. This page lists which firmware versions are affected — it doesn't claim your specific unit is vulnerable. Check your device's current firmware version in its admin panel and compare it against the ranges above.