D-Link DIR 605l Vulnerabilities
66 known CVEs, 9 critical, 1 in CISA's Known Exploited Vulnerabilities catalog. Last updated 2026-10-24.
Known CVEs
An issue was discovered in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 and DIR-605L Rev.B 2.12B1 devices. There is a stack-based buffer overflow allowing remote attackers to execute arbitrary code without authentication ...
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the curTime parameter at /goform/formSetACLFilter.
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the curTime parameter at /goform/formSetRoute.
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the config.smtp_email_subject parameter at /goform/formSetEmail.
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the FILECODE parameter at /goform/formLogin.
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the webpage parameter at /goform/formWPS.
D-Link DIR-605L firmware version 1.17B01 BETA is vulnerable to stack overflow via /goform/formTcpipSetup,
A stack-based buffer overflow vulnerability exists in D-Link DIR-605L Wireless N300 Cloud Router firmware versions 1.12 and 1.13 via the getAuthCode() function. The flaw arises from unsafe usage of sprintf() when proc...
D-Link DIR-605L Hardware Revision B2 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wr...
An issue was discovered in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 and DIR-605L Rev.B 2.12B1 devices. goform/formSysCmd allows remote authenticated users to execute arbitrary OS commands via the sysCmd POST parameter.
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" / "d-link" or "admin" / "pass" 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 D-Link DIR 605l 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 D-Link DIR 605l'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.