D-Link DIR 868l Vulnerabilities & CVEs | ProbeShield

Known CVEs

CVE-2016-5681CRITICAL (9.8)

Stack-based buffer overflow in dws/api/Login on D-Link DIR-850L B1 2.07 before 2.07WWB05, DIR-817 Ax, DIR-818LW Bx before 2.05b03beta03, DIR-822 C1 3.01 before 3.01WWb02, DIR-823 A1 1.00 before 1.00WWb05, DIR-895L A1 ...

Affected: versions <= 2.03Fixed in: later than 2.03

CVE-2018-6530CRITICAL (9.8)CISA KEV

OS command injection vulnerability in soap.cgi (soapcgi_main in cgibin) in D-Link DIR-880L DIR-880L_REVA_FIRMWARE_PATCH_1.08B04 and previous versions, DIR-868L DIR868LA1_FW112b04 and previous versions, DIR-65L DIR-865...

Affected: versions <= 1.12b04Fixed in: later than 1.12b04

CVE-2018-9284CRITICAL (9.8)

authentication.cgi on D-Link DIR-868L devices with Singapore StarHub firmware before v1.21SHCb03 allows remote attackers to execute arbitrary code.

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

CVE-2016-6563CRITICAL (9.8)

Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some D-Link DIR routers. The vulnerable XML fields within the SOAP body are: Action, Username, LoginPas...

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

CVE-2018-19987CRITICAL (9.8)

D-Link DIR-822 Rev.B 202KRb06, DIR-822 Rev.C 3.10B06, DIR-860L Rev.B 2.03.B03, DIR-868L Rev.B 2.05B02, DIR-880L Rev.A 1.20B01_01_i3se_BETA, and DIR-890L Rev.A 1.21B02_BETA devices mishandle IsAccessPoint in /HNAP1/Set...

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

CVE-2018-19988CRITICAL (9.8)

In the /HNAP1/SetClientInfoDemo message, the AudioMute and AudioEnable parameters are vulnerable, and the vulnerabilities affect D-Link DIR-868L Rev.B 2.05B02 devices. In the SetClientInfoDemo.php source code, the Aud...

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

CVE-2019-16190CRITICAL (9.8)

SharePort Web Access on D-Link DIR-868L REVB through 2.03, DIR-885L REVA through 1.20, and DIR-895L REVA through 1.21 devices allows Authentication Bypass, as demonstrated by a direct request to folder_view.php or cat...

Affected: versions <= 2.03Fixed in: later than 2.03

CVE-2017-14948CRITICAL (9.8)

Certain D-Link products are affected by: Buffer Overflow. This affects DIR-880L 1.08B04 and DIR-895 L/R 1.13b03. The impact is: execute arbitrary code (remote). The component is: htdocs/fileaccess.cgi. The attack vect...

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

CVE-2019-17621CRITICAL (9.8)CISA KEV

The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE re...

Affected: versions <= 1.12b04Fixed in: later than 1.12b04

CVE-2023-29856CRITICAL (9.8)

D-Link DIR-868L Hardware version A1, firmware version 1.12 is vulnerable to Buffer Overflow. The vulnerability is in scandir.sgi binary.

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/): "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 868l 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 868l'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.