Tenda vulnerabilities

CVE-2026-105778 Critical · 9.9 CWE-119 Oct 6, 2026

Tenda AC5 Wifi setWifi stack-based overflow

A vulnerability has been found in Tenda AC5 02.03.01.111_multi. Affected by this issue is some unknown functionality of the file /goform/setWifi of the component Wifi Handler. Such manipulation of the argument wifiPwd leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVE-2026-78141 High · 7.4 CWE-74 Aug 23, 2026

Tenda CH22 exeCommand formexeCommand command injection

A vulnerability has been found in Tenda CH22 1.0.0.1. This affects the function formexeCommand of the file /goform/exeCommand. The manipulation of the argument cmdinput leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

CVE-2026-78063 High · 7.4 CWE-74 Aug 23, 2026

Tenda CH22 editFileName formeditFileName command injection

A security flaw has been discovered in Tenda CH22 1.0.0.1. The impacted element is the function formeditFileName of the file /goform/editFileName. The manipulation of the argument editNameMit results in command injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

CVE-2026-11405 Critical · 9.8 Jul 6, 2026

Hidden backdoor authentication mechanism in multiple versions of Tenda firmware allows admin access to web management interface

The web server binary /bin/httpd contains a hidden backdoor authentication mechanism in the login() function at 004c88b8. - The function contains a normal authentication path using MD5/hash-based password verification (prod_encode64/PasswordToMd5/check_rand_key). - After normal authentication fails, it calls GetValue("sys.rzadmin.password") to read a backdoor password from the device configuration. - It performs a direct strcmp() comparison (plaintext, not hashed) between the config value and the user-supplied password. A successful match grants role=2 (admin-level access) and creates a valid session. The rzadmin username is never checked — any username works with the backdoor

CVE-2026-13519 High · 8.8 CWE-119 Jun 28, 2026

Tenda JD12L NatStaticSetting fromNatStaticSetting stack-based overflow

A vulnerability was found in Tenda JD12L 16.03.53.23. This impacts the function fromNatStaticSetting of the file /goform/NatStaticSetting. The manipulation of the argument page results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

CVE-2026-13518 High · 8.8 CWE-119 Jun 28, 2026

Tenda JD12L addressNat fromAddressNat stack-based overflow

A vulnerability has been found in Tenda JD12L 16.03.53.23. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CVE-2026-13517 High · 8.8 CWE-119 Jun 28, 2026

Tenda JD12L WifiBasicSet formWifiBasicSet stack-based overflow

A flaw has been found in Tenda JD12L 16.03.53.23. The impacted element is the function formWifiBasicSet of the file /goform/WifiBasicSet. Executing a manipulation of the argument security_5g can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

CVE-2026-13516 High · 8.8 CWE-119 Jun 28, 2026

Tenda JD12L WifiGuestSet fromSetWifiGusetBasic stack-based overflow

A vulnerability was detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

CVE-2026-13515 High · 8.8 CWE-119 Jun 28, 2026

Tenda JD12L SetPptpServerCfg formSetPPTPServer stack-based overflow

A security vulnerability has been detected in Tenda JD12L 16.03.53.23. Impacted is the function formSetPPTPServer of the file /goform/SetPptpServerCfg. Such manipulation of the argument startIp leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

CVE-2026-51846 Critical · 9.8 CWE-121 Jun 19, 2026

Tenda AC7 Firmware Stack Buffer Overflow in wanSpeed Parameter (CVE-2026-51846)

In Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can lead to remote arbitrary code execution.

CVE-2026-51845 Critical · 9.8 CWE-121 Jun 19, 2026

Tenda AC7 Stack-based Buffer Overflow in AdvSetMacMtuWan Interface

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the mac parameter.

CVE-2026-51844 Critical · 9.8 CWE-121 Jun 19, 2026

Tenda AC7 Stack Buffer Overflow in AdvSetMacMtuWan via cloneType

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the cloneType parameter.

CVE-2026-51843 Critical · 9.8 CWE-121 Jun 19, 2026

Tenda AC7 firmware stack buffer overflow in wanMTU handler

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the wanMTU parameter.

CVE-2026-11557 High · 8.8 CWE-119 Jun 8, 2026

Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow

A weakness has been identified in Tenda F451 1.0.0.7/1.0.0.9. The affected element is the function fromNatlimit of the file /goform/Natlimit of the component Web Management Interface. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

CVE-2026-11556 High · 8.8 CWE-77 Jun 8, 2026

Tenda F451 Web Management WriteFacMac formWriteFacMac os command injection

A security flaw has been discovered in Tenda F451 1.0.0.7/1.0.0.9. Impacted is the function formWriteFacMac of the file /goform/WriteFacMac of the component Web Management Interface. Performing a manipulation of the argument mac results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

CVE-2026-11553 High · 8.8 CWE-119 Jun 8, 2026

Tenda HG7/HG9/HG10 formPPPEdit stack-based overflow

A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

CVE-2026-11528 High · 8.8 CWE-119 Jun 8, 2026

Tenda AC18 Web Management getRebootStatus sub_45304 stack-based overflow

A vulnerability was found in Tenda AC18 15.03.05.05. The affected element is the function sub_45304 of the file /goform/getRebootStatus of the component Web Management Interface. The manipulation of the argument callback results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

CVE-2026-11524 High · 8.8 CWE-119 Jun 8, 2026

Tenda W20E Web Management modifyWifiFilterRules stack-based overflow

A vulnerability has been found in Tenda W20E 15.11.0.6. Impacted is the function modifyWifiFilterRules of the file /goform/modifyWifiFilterRules of the component Web Management Interface. The manipulation of the argument wifiFilterListRemark leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

CVE-2026-11523 High · 8.8 CWE-119 Jun 8, 2026

Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow

A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

CVE-2026-11522 High · 8.8 CWE-119 Jun 8, 2026

Tenda W20E setPortMirror formSetPortMirror stack-based overflow

A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

CVE-2026-11504 High · 8.8 CWE-119 Jun 8, 2026

Tenda CX12L Wi-Fi Schedule Configuration Endpoint openSchedWifi setSchedWifi stack-based overflow

A vulnerability was detected in Tenda CX12L 16.03.53.12. The impacted element is the function setSchedWifi of the file /goform/openSchedWifi of the component Wi-Fi Schedule Configuration Endpoint. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

CVE-2026-11503 High · 8.8 CWE-119 Jun 8, 2026

Tenda CX12L Wi-Fi Configuration Endpoint fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow

A security vulnerability has been detected in Tenda CX12L 16.03.53.12. The affected element is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set of the component Wi-Fi Configuration Endpoint. Such manipulation of the argument ssid leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

CVE-2026-11499 Critical · 9.8 CWE-119 Jun 8, 2026

Tenda HG7/HG9/HG10 formDOMAINBLK stack-based overflow

A vulnerability was determined in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formDOMAINBLK of the file /boaform/formDOMAINBLK. Executing a manipulation of the argument blkDomain can lead to stack-based buffer overflow. The attack may be performed from remote.

CVE-2026-11498 High · 8.8 CWE-119 Jun 8, 2026

Tenda HG7/HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflow

A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. Affected by this issue is the function asp_voip_OtherSet of the file /boaform/voip_other_set of the component Web Management Interface. Performing a manipulation of the argument funckey_transfer results in stack-based buffer overflow. The attack is possible to be carried out remotely.

CVE-2026-11493 Medium · 5.0 CWE-521 Jun 8, 2026

Tenda AC15 Samba smb.conf weak password

A weakness has been identified in Tenda AC15 15.03.05.19. The impacted element is an unknown function of the file /etc_ro/smb.conf of the component Samba. Executing a manipulation can lead to weak password requirements. The attack is only possible within the local network. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been made available to the public and could be used for attacks.