Totolink vulnerabilities

CVE-2026-9384 Critical · 9.8 CWE-77 May 24, 2026

Totolink A8000RU Web Management cstecgi.cgi setDiagnosisCfg os command injection

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument ip results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.

CVE-2026-8137 High · 8.8 CWE-119 May 8, 2026

Totolink X5000R formDdns sub_458E40 buffer overflow

A vulnerability has been found in Totolink X5000R 9.1.0u.6369_B20230113. This vulnerability affects the function sub_458E40 of the file /boafrm/formDdns. The manipulation of the argument submit-url leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CVE-2026-7823 Critical · 9.8 CWE-77 May 5, 2026

Totolink A8000RU Command Injection via setAppFilterCfg

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

CVE-2026-7750 High · 8.8 CWE-119 May 4, 2026

Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow

A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

CVE-2026-7749 High · 8.8 CWE-119 May 4, 2026

Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer overflow

A security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

CVE-2026-7748 High · 8.8 CWE-119 May 4, 2026

Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow

A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

CVE-2026-7747 Critical · 9.8 CWE-119 May 4, 2026

Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow

A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

CVE-2026-7721 Medium · 6.3 CWE-74 May 4, 2026

Totolink WA300 cstecgi.cgi NTPSyncWithHost command injection

A security vulnerability has been detected in Totolink WA300 5.2cu.7112_B20190227. This affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument hostTime leads to command injection. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

CVE-2026-7720 Medium · 6.3 CWE-74 May 3, 2026

Totolink WA300 POST Request cstecgi.cgi setLanguageCfg command injection

A weakness has been identified in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument langType causes command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

CVE-2026-7719 Critical · 9.8 CWE-119 May 3, 2026

Totolink WA300 Buffer Overflow in loginauth via cstecgi.cgi (CVE-2026-7719)

A security flaw has been discovered in Totolink WA300 5.2cu.7112_B20190227. The affected element is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument http_host results in buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

CVE-2026-7718 Medium · 6.3 CWE-74 May 3, 2026

Totolink WA300 POST Request cstecgi.cgi setWebWlanIdx command injection

A vulnerability was identified in Totolink WA300 5.2cu.7112_B20190227. Impacted is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument webWlanIdx leads to command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

CVE-2026-7717 High · 8.8 CWE-119 May 3, 2026

Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

CVE-2026-7633 Medium · 6.5 CWE-73 May 2, 2026

Totolink N300RH cstecgi.cgi setUploadSetting file inclusion

A vulnerability was identified in Totolink N300RH 6.1c.1353_B20190305. This impacts the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument FileName leads to file inclusion. The attack may be performed from remote. The exploit is publicly available and might be used.

CVE-2026-7548 High · 8.8 CWE-74 May 1, 2026

Totolink NR1800X cstecgi.cgi sub_41A68C command injection

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. This affects the function sub_41A68C of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument setUssd results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used.

CVE-2026-7546 Critical · 9.8 CWE-119 May 1, 2026

Totolink NR1800X stack-based buffer overflow in find_host_ip (CVE-2026-7546)

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

CVE-2026-7538 Critical · 9.8 CWE-77 Apr 30, 2026

Totolink A8000RU OS Command Injection in cstecgi.cgi (CVE-2026-7538)

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function Vulnerability of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument proto leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

CVE-2026-7244 Critical · 9.8 CWE-77 Apr 28, 2026

Totolink A8000RU OS Command Injection in setWiFiEasyGuestCfg

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument merge results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

CVE-2026-7243 Critical · 9.8 CWE-77 Apr 28, 2026

Totolink A8000RU OS Command Injection in CGI Handler (CVE-2026-7243)

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument maxRtrAdvInterval leads to os command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

CVE-2026-7242 Critical · 9.8 CWE-77 Apr 28, 2026

Totolink A8000RU OS Command Injection in setOpenVpnClientCfg

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnClientCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enabled can lead to os command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

CVE-2026-7241 Critical · 9.8 CWE-77 Apr 28, 2026

Totolink A8000RU OS Command Injection in setWiFiBasicCfg (CVE-2026-7241)

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument wifiOff results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used.

CVE-2026-7240 Critical · 9.8 CWE-77 Apr 28, 2026

Totolink A8000RU OS Command Injection in CGI Handler

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument User leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

CVE-2026-7219 High · 7.2 CWE-119 Apr 28, 2026

Totolink N300RT formIpQoS buffer overflow

A flaw has been found in Totolink N300RT 3.4.0-B20250430. This affects an unknown function of the file /boafrm/formIpQoS. Executing a manipulation of the argument entry_name can lead to buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

CVE-2026-7218 High · 7.2 CWE-119 Apr 28, 2026

Totolink N300RT libapmib.so formWsc is_cmd_string_valid buffer overflow

A vulnerability was detected in Totolink N300RT 3.4.0-B20250430. The impacted element is the function is_cmd_string_valid of the file /boafrm/formWsc of the component libapmib.so. Performing a manipulation of the argument localPin results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

CVE-2026-7204 Critical · 9.8 CWE-77 Apr 27, 2026

Totolink A8000RU CGI cstecgi.cgi setPptpServerCfg os command injection

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setPptpServerCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument enable causes os command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

CVE-2026-7203 Critical · 9.8 CWE-77 Apr 27, 2026

Totolink A8000RU OS Command Injection in setUrlFilterRules CGI Handler

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used.