A vulnerability was discovered in DI_8200-16.07.26A1, which has been classified as critical. This issue affects the upgrade_filter_asp function in the upgrade_filter.asp file. Manipulation of the path parameter can lead to command injection.

D-Link DIR-300 REVA FIRMWARE v1.06B05_WW contains hardcoded credentials in the Telnet service.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the anweb service, which listens on TCP ports 80 and 443 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15728.

A command injection vulnerability exists in the cgibin binary in DIR-845L router firmware <= v1.01KRb03.

The D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the SOAPACTION parameter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input, and possibly remote code execution.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Cookie parameter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input, and possibly remote code execution.

D-Link DIR-605L v2.13B01 was discovered to contain a hardcoded password vulnerability in /etc/passwd, which allows attackers to log in as root.

Buffer Overflow vulnerability in D-Link DSR-150, DSR-150N, DSR-250, DSR-250N, DSR-500N, DSR-1000N from 3.13 to 3.17B901C allows unauthenticated users to execute remote code execution.

D-Link DI_8004W 16.07.26A1 contains a command execution vulnerability in jhttpd msp_info_htm function.

D-Link DSL6740C v6.TR069.20211230 was discovered to use insecure default credentials for Administrator access, possibly allowing attackers to bypass authentication and escalate privileges on the device via a bruteforce attack.

D-Link DI_8004W 16.07.26A1 contains a command execution vulnerability in the jhttpd upgrade_filter_asp function.

D-Link DI-7003GV2 v24.04.18D1, DI-7100G+V2 v24.04.18D1, DI-7100GV2 v24.04.18D1, DI-7200GV2 v24.04.18E1, DI-7300G+V2 v24.04.18D1, and DI-7400G+V2 v24.04.18D1 are vulnerable to Remote Command Execution due to insufficient parameter filtering in the CGI handling function of upgrade_filter.asp.

D-Link DI-7003G v19.12.24A1, DI-7003GV2 v24.04.18D1, DI-7100G+V2 v24.04.18D1, DI-7100GV2 v24.04.18D1, DI-7200GV2 v24.04.18E1, DI-7300G+V2 v24.04.18D1, and DI-7400G+V2 v24.04.18D1 are vulnerable to Remote Command Execution (RCE) via version_upgrade.asp.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10932.

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).

Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.

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/SetAccessPointMode. In the SetAccessPointMode.php source code, the IsAccessPoint parameter is saved in the ShellPath script file without any regex checking. After the script file is executed, the command injection occurs. A vulnerable /HNAP1/SetAccessPointMode XML message could have shell metacharacters in the IsAccessPoint element such as the `telnetd` string.

In the /HNAP1/SetWiFiVerifyAlpha message, the WPSPIN parameter is vulnerable, and the vulnerability affects D-Link DIR-822 B1 202KRb06 devices. In the SetWiFiVerifyAlpha.php source code, the WPSPIN parameter is saved in the $rphyinf1."/media/wps/enrollee/pin" and $rphyinf2."/media/wps/enrollee/pin" and $rphyinf3."/media/wps/enrollee/pin" internal configuration memory without any regex checking. And in the do_wps function of the wps.php source code, the data in $rphyinf3."/media/wps/enrollee/pin" is used with the wpatalk command without any regex checking. A vulnerable /HNAP1/SetWiFiVerifyAlpha XML message could have shell metacharacters in the WPSPIN element such as the `telnetd` string.

In the /HNAP1/SetRouterSettings message, the RemotePort parameter is vulnerable, and the vulnerability affects D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices. In the SetRouterSettings.php source code, the RemotePort parameter is saved in the $path_inf_wan1."/web" internal configuration memory without any regex checking. And in the IPTWAN_build_command function of the iptwan.php source code, the data in $path_inf_wan1."/web" is used with the iptables command without any regex checking. A vulnerable /HNAP1/SetRouterSettings XML message could have shell metacharacters in the RemotePort element such as the `telnetd` string.

On D-Link DIR-818LW Rev.A 2.05.B03 and DIR-860L Rev.B 2.03.B03 devices, unauthenticated remote OS command execution can occur in the soap.cgi service of the cgibin binary via an "&&" substring in the service parameter. NOTE: this issue exists because of an incomplete fix for CVE-2018-6530.

In the /HNAP1/SetQoSSettings message, the uplink parameter is vulnerable, and the vulnerability affects D-Link DIR-822 Rev.B 202KRb06 and DIR-822 Rev.C 3.10B06 devices. In the SetQoSSettings.php source code, the uplink parameter is saved in the /bwc/entry:1/bandwidth and /bwc/entry:2/bandwidth internal configuration memory without any regex checking. And in the bwc_tc_spq_start, bwc_tc_wfq_start, and bwc_tc_adb_start functions of the bwcsvcs.php source code, the data in /bwc/entry:1/bandwidth and /bwc/entry:2/bandwidth is used with the tc command without any regex checking. A vulnerable /HNAP1/SetQoSSettings XML message could have shell metacharacters in the uplink element such as the `telnetd` string.

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.

A code execution vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger this vulnerability.

Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that these are also affected: DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825.

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through a specific functionality provided by SSH and Telnet.

A vulnerability was found in D-Link DNS-320, DNS-320LW, DNS-325 and DNS-340L up to 20241028. It has been declared as critical. Affected by this vulnerability is the function cgi_user_add of the file /cgi-bin/account_mgr.cgi?cmd=cgi_user_add. The manipulation of the argument name leads to os command injection. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

A vulnerability was found in D-Link DNS-320, DNS-320LW, DNS-325 and DNS-340L up to 20241028. It has been rated as critical. Affected by this issue is the function cgi_user_add of the file /cgi-bin/account_mgr.cgi?cmd=cgi_user_add. The manipulation of the argument group leads to os command injection. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through a specific functionality provided by SSH and Telnet.

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through a specific functionality provided by SSH and Telnet.

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through a specific functionality provided by SSH and Telnet.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/NTPSyncWithHost route. This could lead to command injection via shell metacharacters.

A vulnerability has been found in D-Link DIR-816 A2 1.10CNB04 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/setDeviceSettings of the component Web Interface. The manipulation of the argument statuscheckpppoeuser leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252139.

D-Link DSL-3782 v1.03 and below was discovered to contain a command injection vulnerability via the function byte_4C0160.

An issue was discovered on D-Link DSL-3782 devices with firmware 1.01. An OS command injection vulnerability in Acl.asp allows a remote authenticated attacker to execute arbitrary OS commands via the ScrIPaddrEndTXT parameter.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction in the handler function of the /goform/form2systime.cgi route. This could lead to command injection via shell metacharacters in the datetime parameter.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction in the handler function of the /goform/Diagnosis route. This could lead to command injection via shell metacharacters in the sendNum parameter.

On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the "system" library function.

DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to execute arbitrary OS commands by sending a specially crafted request to a specific CGI program.

D-Link DIR-846 devices with firmware 100.26 allow remote attackers to execute arbitrary code as root via a SetNetworkTomographySettings request by leveraging admin access.

The D-Link DSL6740C modem has an OS Command Injection vulnerability, allowing remote attackers with administrator privileges to inject and execute arbitrary system commands through the specific web page.

A vulnerability was found in D-Link DI-8003 16.07.16A1. It has been classified as critical. Affected is the function upgrade_filter_asp of the file /upgrade_filter.asp. The manipulation of the argument path leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

An issue was discovered on D-Link DWR-116 through 1.06, DWR-512 through 2.02, DWR-712 through 2.02, DWR-912 through 2.02, DWR-921 through 2.02, and DWR-111 through 1.01 devices. An authenticated attacker may execute arbitrary code by injecting the shell command into the chkisg.htm page Sip parameter. This allows for full control over the device internals.

On D-Link DIR-550A and DIR-604M devices through v2.10KR, a malicious user can forge an HTTP request to inject operating system commands that can be executed on the device with higher privileges, aka remote code execution.

A command injection vulnerability in the component /SetTriggerLEDBlink/Blink of D-Link DIR882 DIR882A1_FW130B06 allows attackers to escalate privileges to root via a crafted payload.

D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetNTPserverSeting. This vulnerability allows attackers to execute arbitrary commands via the system_time_timezone parameter.

D-Link DIR-645 v1.03 was discovered to contain a command injection vulnerability via the QUERY_STRING parameter at __ajax_explorer.sgi.

D-Link DIR-822+ V1.0.2 was found to contain a command injection in SetStaticRouteSettings function. allows remote attackers to execute arbitrary commands via shell.

D-Link DIR-615 2.5.17 devices allow Remote Code Execution via shell metacharacters in the Host field of the System / Traceroute screen.

A vulnerability was identified in D-Link DIR-860L 2.04.B04. This affects the function ssdpcgi_main of the file htdocs/cgibin of the component Simple Service Discovery Protocol. The manipulation leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.