Totolink A720R Firmware vulnerabilities

CVE-2025-4270 [HIGH] CWE-200 CVE-2025-4270: A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affe A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Config Handler. The manipulation of the argument topicurl with the input getInitCfg/getSysStatusCfg leads to information disclosure. It is possible to launch the attack remotely

CVE-2021-35327 [CRITICAL] CWE-862 CVE-2021-35327: A vulnerability in TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to start th A vulnerability in TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to start the Telnet service, then login with the default credentials via a crafted POST request.

CVE-2021-27710 [CRITICAL] CWE-78 CVE-2021-27710: Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. This occurs because the function executes glibc's system function with untrusted input. In the function, "ip" pa

CVE-2021-27708 [CRITICAL] CWE-78 CVE-2021-27708: Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. This occurs because the function executes glibc's system function with untrusted input. In the function, "comman

CVE-2021-44247 [CRITICAL] CWE-77 CVE-2021-44247: Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_ Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain command injection vulnerability in the function setNoticeCfg. This vulnerability allows attackers to execute arbitrary commands via the IpFrom parameter.

CVE-2025-9303 [CRITICAL] CWE-119 CVE-2025-9303: A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509. This issue affects the A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509. This issue affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument desc results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be exploited.

CVE-2021-45742 [CRITICAL] CWE-77 CVE-2021-45742: TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a command injection vulnerability in TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a command injection vulnerability in the "Main" function. This vulnerability allows attackers to execute arbitrary commands via the QUERY_STRING parameter.

CVE-2021-35324 [CRITICAL] CVE-2021-35324: A vulnerability in the Form_Login function of TOTOLINK A720R A720R_Firmware V4.1.5cu.470_B20200911 a A vulnerability in the Form_Login function of TOTOLINK A720R A720R_Firmware V4.1.5cu.470_B20200911 allows attackers to bypass authentication.

CVE-2024-8869 [HIGH] CWE-78 CVE-2024-8869: A vulnerability classified as critical has been found in TOTOLINK A720R 4.1.5. Affected is the funct A vulnerability classified as critical has been found in TOTOLINK A720R 4.1.5. Affected is the function exportOvpn. The manipulation leads to os command injection. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The vendor was contacted early about this disclosure but d

CVE-2021-45740 [CRITICAL] CVE-2021-45740: TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsSt TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the pin parameter.

CVE-2025-60682 [MEDIUM] CWE-77 CVE-2025-60682: A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B2023063 A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the cloudupdate_check binary, specifically in the sub_402414 function that handles cloud update parameters. User-supplied 'magicid' and 'url' values are directly concatenated into shell commands and executed via system() without any sanitizati

CVE-2025-60683 [MEDIUM] CWE-77 CVE-2025-60683: A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B2023063 A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary, specifically in the sub_40BFA4 function that handles network interface reinitialization from '/var/system/linux_vlan_reinit'. Input is only partially validated by checking the prefix of interface names, and is concatenated

CVE-2023-23064 [CRITICAL] CWE-863 CVE-2023-23064: TOTOLINK A720R V4.1.5cu.532_ B20210610 is vulnerable to Incorrect Access Control. TOTOLINK A720R V4.1.5cu.532_ B20210610 is vulnerable to Incorrect Access Control.

CVE-2021-35325 [HIGH] CWE-787 CVE-2021-35325: A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200 A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).

CVE-2022-36456 [HIGH] CWE-78 CVE-2022-36456: TOTOLink A720R V4.1.5cu.532_B20210610 was discovered to contain a command injection vulnerability vi TOTOLink A720R V4.1.5cu.532_B20210610 was discovered to contain a command injection vulnerability via the username parameter in /cstecgi.cgi.

CVE-2021-35326 [HIGH] CVE-2021-35326: A vulnerability in TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows attackers to do A vulnerability in TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows attackers to download the configuration file via sending a crafted HTTP request.

CVE-2022-38535 [HIGH] CWE-78 CVE-2022-38535: TOTOLINK-720R v4.1.5cu.374 was discovered to contain a remote code execution (RCE) vulnerability via TOTOLINK-720R v4.1.5cu.374 was discovered to contain a remote code execution (RCE) vulnerability via the setTracerouteCfg function.

CVE-2022-38534 [HIGH] CWE-78 CVE-2022-38534: TOTOLINK-720R v4.1.5cu.374 was discovered to contain a remote code execution (RCE) vulnerability via TOTOLINK-720R v4.1.5cu.374 was discovered to contain a remote code execution (RCE) vulnerability via the setdiagnosicfg function.

CVE-2022-36610 [HIGH] CWE-798 CVE-2022-36610: TOTOLINK A720R V4.1.5cu.532_B20210610 was discovered to contain a hardcoded password for root at /et TOTOLINK A720R V4.1.5cu.532_B20210610 was discovered to contain a hardcoded password for root at /etc/shadow.sample.

CVE-2021-44246 [HIGH] CVE-2021-44246: Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_ Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain a stack overflow in the function setNoticeCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IpTo parameter.