Netgear Dgn2200 Vulnerabilities & CVEs

Q: Is my Netgear Dgn2200 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.

Q: How do I update my Netgear Dgn2200'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.

Q: 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No — ProbeShield scans your network and tells you what it finds (open ports, default credentials, outdated firmware signals) so you know what to fix, and how.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.

Known CVEs

CVE-2021-38516CRITICAL (10)

Certain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before 1.0.0.48, D6400 before 1.0.0.82, D7000v2 before 1.0.0.52, D7800 before 1.0.1.44, D8500 before 1.0.3.43, D...

Affected: versions < 1.0.0.108Fixed in: 1.0.0.108

CVE-2017-6077CRITICAL (9.8)CISA KEV

ping.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the ping_IPAddr field of an HTTP POST request.

Affected: versions <= 10.0.0.50Fixed in: later than 10.0.0.50

CVE-2016-5649CRITICAL (9.8)

A vulnerability is in the 'BSW_cxttongr.htm' page of the Netgear DGN2200, version DGN2200-V1.0.0.50_7.0.50, and DGND3700, version DGND3700-V1.0.0.17_1.0.17, which can allow a remote attacker to access this page withou...

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

CVE-2019-17373CRITICAL (9.8)

Certain NETGEAR devices allow unauthenticated access to critical .cgi and .htm pages via a substring ending with .jpg, such as by appending ?x=1.jpg to a URL. This affects MBR1515, MBR1516, DGN2200, DGN2200M, DGND3700...

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

CVE-2017-6366HIGH (8.8)

Cross-site request forgery (CSRF) vulnerability in NETGEAR DGN2200 routers with firmware 10.0.0.20 through 10.0.0.50 allows remote attackers to hijack the authentication of users for requests that perform DNS lookups ...

Affected: versions <= 10.0.0.50Fixed in: later than 10.0.0.50

CVE-2019-20753HIGH (8.8)

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects DGN2200v1 before 1.0.0.58, D8500 before 1.0.3.42, D7000v2 before 1.0.0.51, D6400 before 1.0.0.78, D622...

Affected: versions < 1.0.0.58Fixed in: 1.0.0.58

CVE-2017-18842HIGH (8.8)

Certain NETGEAR devices are affected by CSRF. This affects R7300 before 1.0.0.54, R8500 before 1.0.2.94, DGN2200v1 before 1.0.0.55, and D2200D/D2200DW-1FRNAS before 1.0.0.32.

Affected: versions < 1.0.0.55Fixed in: 1.0.0.55

CVE-2017-18755HIGH (8.8)

Certain NETGEAR devices are affected by CSRF. This affects R6300v2 before 1.0.4.8, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000P before 1.0.0.86, R6900P before 1.0.0.56, R7300 before 1....

Affected: versions < 1.0.0.86Fixed in: 1.0.0.86

CVE-2017-18756HIGH (8.8)

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D6220 before 1.0.0.32, D6400 before 1.0.0.66, D8500 before 1.0.3.35, DGN2200Bv4 before 1.0.0.94, DGN2200v4 before 1.0....

Affected: versions < 1.0.0.94Fixed in: 1.0.0.94

CVE-2024-57046HIGH (8.8)

A vulnerability in the Netgear DGN2200 router with firmware version v1.0.0.46 and earlier permits unauthorized individuals to bypass the authentication. When adding "?x=1.gif" to the the requested url, it will be reco...

Affected: versions <= 1.0.0.46Fixed in: later than 1.0.0.46

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 Dgn2200 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 Dgn2200'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.