TP-Link TL Wdr4300 Vulnerabilities & CVEs

Q: Is my TP-Link TL Wdr4300 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 TP-Link TL Wdr4300'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No — ProbeShield scans your network and tells you what it finds (open ports, default credentials, outdated firmware signals) so you know what to fix, and how.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-2013-4654CRITICAL (9.8)

Symlink Traversal vulnerability in TP-LINK TL-WDR4300 and TL-1043ND..

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

CVE-2019-6487HIGH (8.8)

TP-Link WDR Series devices through firmware v3 (such as TL-WDR5620 V3.0) are affected by command injection (after login) leading to remote code execution, because shell metacharacters can be included in the weather ge...

Affected: versions <= 3.0Fixed in: later than 3.0

CVE-2013-4848HIGH (8.8)

TP-Link TL-WDR4300 version 3.13.31 has multiple CSRF vulnerabilities.

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

CVE-2015-3035HIGH (7.5)CISA KEV

Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before 150304, and C8 (1.0) with firmware before 150316, Archer C9 (1.0), TL-WDR3500 (1.0), TL-WDR3600 (...

Affected: versions < 150302Fixed in: 150302

CVE-2023-50224MEDIUM (6.5)CISA KEV

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link T...

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

CVE-2014-4728MEDIUM (5)

The web server in the TP-LINK N750 Wireless Dual Band Gigabit Router (TL-WDR4300) with firmware before 140916 allows remote attackers to cause a denial of service (crash) via a long header in a GET request.

Affected: versions <= 130617Fixed in: later than 130617

CVE-2014-4727MEDIUM (4.3)

Cross-site scripting (XSS) vulnerability in the DHCP clients page in the TP-LINK N750 Wireless Dual Band Gigabit Router (TL-WDR4300) with firmware before 140916 allows remote attackers to inject arbitrary web script o...

Affected: versions <= 130617Fixed in: later than 130617

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/): "admin" / "tplink" or "admin" / "admin123" 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 TP-Link TL Wdr4300 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 TP-Link TL Wdr4300'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.