A Command Injection vulnerability exists in the bsSetLimitCliinfo function within the libshare.so library of LB-link Router AC450M V4.0.0. This flaw occurs due to insufficient validation and sanitization of user-supplied input before it is passed to a system-level command execution context. An attacker can exploit this vulnerability by injecting specially crafted shell metacharacters or payloads into the vulnerable parameter, resulting in the execution of arbitrary operating system commands.

A security flaw has been discovered in LB-LINK X-PRO 1.0.22-20231206. This affects an unknown function of the file /etc/config/easycwmp. The manipulation results in hard-coded credentials. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was identified in LB-LINK X-PRO 1.0.22-20231206. The impacted element is an unknown function of the file /etc/shadow. The manipulation leads to hard-coded credentials. It is possible to initiate the attack remotely. A high degree of complexity is needed for the attack. The exploitability is regarded as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

A flaw has been found in LB-Link WR1210M 1.0.3. This impacts the function main of the file /www/cgi-bin/backup.cgi of the component Backup Endpoint. This manipulation causes missing authentication. The attack is only possible within the local network. The vendor was contacted early about this disclosure but did not respond in any way.

The LB-Link routers, including the BL-AC2100AZ3 V1.0.4, BL-WR4000 v2.5.0, BL-WR9000AE4 v2.4.9, BL-AC1900AZ2 v1.0.2, BL-X26AC8 v1.2.8, and BL-LTE300DA4 V1.2.3 models, are vulnerable to unauthorized command injection. Attackers can exploit this vulnerability by accessing the /goform/setserialcfg interface to gain the highest level of device privileges without authorization, enabling them to remotely execute malicious commands.

A vulnerability classified as critical was found in LB-LINK BL-AC1900, BL-AC2100AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. This vulnerability affects the function bsGetHostInfo in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC1900, BL-AC2100AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. This issue affects the function bsGetManPwd in the library libblinkapi.so of the file /cgi-bin/lighttpd.cgi. The manipulation leads to information disclosure. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability, which was classified as critical, was found in LB-LINK BL-AC1900, BL-AC2100AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. Affected is the function reboot/restore of the file /cgi-bin/lighttpd.cgi of the component Web Interface. The manipulation leads to improper authentication. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded credentials. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability, which was classified as critical, was found in LB-LINK BL-AC3600 up to 1.0.22. This affects the function geteasycfg of the file /cgi-bin/lighttpd.cgi of the component Web Management Interface. The manipulation of the argument Password leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub44E8D0 of the file /goform/getvirtualcfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

A security vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub44D844 of the file /goform/gethidessidcfg. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was detected in LB-LINK BL-WR9000 2.4.9. This affects the function sub458754 of the file /goform/setwifi. The manipulation results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in LB-LINK AC1900 Router 1.0.2 and classified as critical. Affected by this issue is the function websGetVar of the file /goform/setblacklist. The manipulation of the argument mac/enable leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability has been found in LB-LINK AC1900 Router 1.0.2 and classified as critical. Affected by this vulnerability is the function websGetVar of the file /goform/setcmd. The manipulation of the argument cmd leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability, which was classified as critical, was found in LB-LINK AC1900 Router 1.0.2. Affected is the function websGetVar of the file /goform/setmanpwd. The manipulation of the argument routepwd  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. The vendor was contacted early about this disclosure but did not respond in any way.

The LB-Link BL-CPE300M AX300 4G LTE Router firmware version BL-R8800B10ALKSLV01.01.02P42U1406 does not implement proper session handling. After a user authenticates from a specific IP address, the router grants access to any other client using that same IP, without requiring credentials or verifying client identity. There are no session tokens, cookies, or unique identifiers in place. This flaw allows an attacker to obtain full administrative access simply by configuring their device to use the same IP address as a previously authenticated user. This results in a complete authentication bypass.

A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3. Affected by this issue is the function delshrpath of the file /goform/setdelshrpathcfg of the component Web Management Interface. The manipulation of the argument Type results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

A security vulnerability has been detected in LB-LINK BL-X26 1.2.8. This affects an unknown function of the file /goform/setblacklist of the component HTTP Handler. Such manipulation of the argument mac leads to os command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A weakness has been identified in LB-LINK BL-X26 1.2.8. The impacted element is an unknown function of the file /goform/sethidessidcfg of the component HTTP Handler. This manipulation of the argument enable causes os command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

A cross-site scripting (XSS) vulnerability exists in the LB-Link BL-CPE300M 01.01.02P42U1406 router's web interface. The /goform/goformgetcmdprocess endpoint fails to sanitize user input in the cmd parameter before reflecting it into a text/html response. This allows unauthenticated attackers to inject arbitrary JavaScript, which is executed in the context of the router's origin when the crafted URL is accessed. The issue requires user interaction to exploit.

An issue in the LB-LINK BL-W1210M v2.0 router allows attackers to bypass password complexity requirements and set single digit passwords for authentication. This vulnerability can allow attackers to access the router via a brute-force attack.

LB-LINK BL-W1210M v2.0 was discovered to contain a clickjacking vulnerability via the Administrator login page. Attackers can cause victim users to perform arbitrary operations via interaction with crafted elements on the web page.

LB-LINK BL-W1210M v2.0 was discovered to store user credentials in plaintext within the router's firmware.

LB-LINK BL-AC19002.0 v1.0.1, LB-LINK BL-WR9000 v2.4.9, LB-LINK BL-X26 v1.2.5, and LB-LINK BL-LTE300 v1.0.8 were discovered to contain a command injection vulnerability via the mac, time1, and time2 parameters at /goform/setLimitClientcfg.

A vulnerability classified as critical has been found in LB-LINK BL-AC3600 up to 1.0.22. This affects the function easyucisetoptionstring0 of the file /cgi-bin/lighttpd.cgi of the component Password Handler. The manipulation of the argument routepwd leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

An issue in BL-AC2100 <=V1.0.4 allows a remote attacker to execute arbitrary code via the time1 and time2 parameters in the setLimitClientcfg of the goahead webservice.

An issue in BL-AC2100 V1.0.4 and before allows a remote attacker to execute arbitrary code via the enable parameter passed to /goform/sethidessidcfg is not handled properly.

LB-LINK BL-WR 1300H v.1.0.4 contains hardcoded credentials stored in /etc/shadow which are easily guessable.

Incorrect access control in the UART/Serial interface on the LB-LINK BL-W1210M v2.0 router allows attackers to access the root terminal without authentication.