TOTOLINK
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OS command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter sent to the setQosCfg function of /cgi-bin/cstecgi.cgi in the Web Management Interface. Publicly available exploit code exists per VulDB submission, and the SSVC framework rates technical impact as total with automatable exploitation, though EPSS probability remains modest at 0.89%.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows unauthenticated remote attackers to execute arbitrary operating system commands by manipulating the wscDisabled parameter sent to the setWiFiWpsCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB disclosure, though EPSS probability remains modest at 0.89% (76th percentile) and the vulnerability is not listed in CISA KEV.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' argument passed to the setMacFilterRules function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB, and SSVC categorizes the technical impact as total with automatable exploitation, though EPSS remains modest at 0.89% (76th percentile).
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the bgProtection parameter in the setWiFiAdvancedCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB, and SSVC classifies the issue as automatable with total technical impact, though EPSS exploitation probability remains modest at 0.89% (76th percentile).
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter passed to the setStaticDhcpRules function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists and SSVC rates this as automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile). Exploitation requires no authentication or user interaction, making any internet-exposed management interface a high-priority target.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the firewallType parameter sent to /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the SSVC framework rates the technical impact as total with automatable exploitation, though it is not currently listed in CISA KEV. EPSS sits at 0.89% (76th percentile), suggesting moderate but not yet widespread opportunistic exploitation.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the 'enable' parameter of the setRemoteCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, raising the practical risk despite the device not being listed in CISA KEV; EPSS sits at 0.89% (76th percentile), reflecting moderate predicted exploitation likelihood.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter passed to the setGameSpeedCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, raising the practical threat despite a modest EPSS score of 0.89% (76th percentile). No active exploitation has been confirmed via CISA KEV at time of analysis.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary shell commands by manipulating the 'provider' argument passed to the setDdnsCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (CVSS 4.0 base 8.9, EPSS 0.89%), and no CISA KEV listing has been issued, but the combination of zero-privilege network exploitation and a working PoC against consumer/SOHO networking gear makes this a high-priority issue for any exposed device.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'mode' parameter sent to the setScheduleCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (published via VulDB and a GitHub PoC), though there is no public exploit identified as actively exploited in the wild and EPSS probability is modest at 0.89%. The flaw resides in the device's Web Management Interface and can be triggered over the network without user interaction, making any internet-exposed device immediately at risk.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the resetFlags parameter handled by the setUpgradeFW function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the SSVC framework classifies exploitation as automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile).
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands through the setLanguageCfg function in /cgi-bin/cstecgi.cgi. The flaw is triggered by manipulating the lang argument in the Web Management Interface, with publicly available exploit code existing and SSVC classifying the issue as automatable with total technical impact. EPSS sits at 0.89% (76th percentile), indicating moderate but non-trivial exploitation probability.
Remote OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'command' argument in the setTracerouteCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the CVSS 4.0 vector confirms network-reachable, low-complexity exploitation without authentication or user interaction, though EPSS remains modest at 0.89% (76th percentile) and the issue is not listed in CISA KEV.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the ip parameter handled by the setDiagnosisCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the CVSS 4.0 score of 8.9 reflects high impact across confidentiality, integrity, and availability. EPSS is moderate at 0.89% (76th percentile), and the vulnerability is not currently listed in CISA KEV.
Buffer overflow in Totolink X5000R 9.1.0u.6369_B20230113 router firmware allows authenticated remote attackers to execute arbitrary code or cause denial of service via crafted submit-url parameter to /boafrm/formDdns endpoint. Public exploit code exists (GitHub). CVSS 7.4 indicates high severity but requires authenticated access (PR:L), limiting immediate risk to environments where router credentials are compromised. EPSS data not available; prioritize if router exposed to internet or untrusted networks.
Remote unauthenticated command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows attackers to execute arbitrary OS commands via the 'enable' parameter in the setAppFilterCfg function. Exploitation requires no authentication or user interaction, with a publicly available proof-of-concept exploit published on GitHub. CVSS 8.9 reflects critical impact across confidentiality, integrity, and availability, though EPSS data is unavailable to assess real-world exploitation probability. Not currently listed in CISA KEV, suggesting targeted rather than widespread exploitation at time of analysis.
Remote authenticated attackers can execute arbitrary code on Totolink N300RH 3.2.4-B20220812 routers via buffer overflow in the setMacFilterRules function. Exploitation requires low-privilege authentication to the router's web interface, then sending a crafted POST request with an oversized mac_address parameter to /cgi-bin/cstecgi.cgi. Public exploit code is available (documented on Notion), significantly lowering the barrier to exploitation. EPSS data not available, but the combination of network attack vector, publicly available POC, and vulnerable IoT device suggest moderate real-world risk for internet-exposed routers with default or weak credentials.
Buffer overflow in Totolink N300RH router firmware 3.2.4-B20220812 allows authenticated remote attackers to achieve complete device compromise via crafted DNS parameter in WAN configuration requests. The vulnerability exists in the setWanConfig function within /cgi-bin/cstecgi.cgi POST handler, exploitable by manipulating the priDns argument. Public exploit code is available (CVSS E:P), and CVSS 4.0 score of 7.4 reflects high confidentiality, integrity, and availability impact on the vulnerable device with no cross-scope effects.
Buffer overflow in Totolink N300RH router firmware 3.2.4-B20220812 enables authenticated remote attackers to achieve code execution via crafted FileName parameter to the setUpgradeFW function in /cgi-bin/cstecgi.cgi. Public exploit code is available (documented in Notion). CVSS 7.4 with CVSS 4.0 Exploit maturity 'Proof-of-concept' confirms POC exists. Not listed in CISA KEV, suggesting limited real-world exploitation despite public POC.
Remote unauthenticated attackers can execute arbitrary code on Totolink N300RH routers version 3.2.4-B20220812 by sending crafted Password parameter values to the loginauth authentication function in /cgi-bin/cstecgi.cgi, triggering a stack-based buffer overflow. Exploitation probability is moderate (EPSS score not provided, but publicly available exploit code exists per VulDB reference). This affects consumer-grade wireless routers often deployed in home/SOHO environments with default internet-facing management interfaces, creating significant remote compromise risk despite the device's end-of-life status.
Remote unauthenticated buffer overflow in Totolink WA300 wireless repeater firmware version 5.2cu.7112_B20190227 enables complete device compromise via crafted HTTP POST requests to the login authentication handler. The vulnerability resides in the loginauth function within /cgi-bin/cstecgi.cgi, where insufficient validation of the http_host parameter allows attackers to overflow memory and achieve arbitrary code execution with device privileges. Publicly available exploit code exists (documented via Notion), enabling trivial exploitation with EPSS probability assessment pending but attack complexity rated low (AC:L) with no authentication barrier (PR:N).
Buffer overflow in Totolink WA300 wireless range extender firmware 5.2cu.7112_B20190227 allows authenticated remote attackers to execute arbitrary code or crash the device via crafted File parameter to the UploadCustomModule function in /cgi-bin/cstecgi.cgi. Public proof-of-concept exploit exists (documented in Notion page), enabling low-skill exploitation. EPSS data not available, but low attack complexity (AC:L) and network attack vector (AV:N) combined with public POC indicate elevated real-world risk for affected devices exposed to untrusted authenticated users.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the 'proto' parameter in /cgi-bin/cstecgi.cgi CGI handler. A public proof-of-concept exploit exists on GitHub, significantly lowering the barrier for exploitation. CVSS 8.9 with network vector, low complexity, and no authentication requirements makes this immediately exploitable against internet-facing devices running the vulnerable firmware version.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the User parameter in the setVpnAccountCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (GitHub POC), enabling immediate weaponization. CVSS 8.9 with full impact on confidentiality, integrity, and availability. EPSS data unavailable; not currently in CISA KEV, but the combination of network accessibility, no authentication requirement, and public exploit makes this a critical risk for internet-facing devices.
Buffer overflow in Totolink N300RT router firmware 3.4.0-B20250430 allows authenticated remote attackers with high-privilege administrative access to execute arbitrary code via crafted input to the entry_name parameter in /boafrm/formIpQoS. Public exploit code is available on GitHub demonstrating the vulnerability. EPSS data not provided, but the requirement for high-privilege authentication significantly limits real-world exploitation surface to scenarios where administrative credentials are already compromised.
Buffer overflow in Totolink N300RT 3.4.0-B20250430 enables authenticated remote code execution via the WPS configuration handler. An attacker with administrative credentials (PR:H) can send a crafted localPin parameter to /boafrm/formWsc, overflowing a buffer in the is_cmd_string_valid function (libapmib.so) to execute arbitrary code with full system access (VC:H/VI:H/VA:H). Public proof-of-concept exploit code exists on GitHub (xiaohaiyang-ai/TOTOLINK-N300RT-Buffer-Overflow), increasing weaponization risk despite requiring privileged access. EPSS data not available; no CISA KEV listing indicates exploitation not yet widespread in wild attacks.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote attackers execute arbitrary shell commands by injecting into the admpass argument of the setLoginPasswordCfg function in /cgi-bin/cstecgi.cgi. The CGI Handler passes attacker-controlled input to a system shell without sanitization, granting full device compromise. Publicly available exploit code exists (disclosed via VulDB/GitHub); no active exploitation is confirmed in CISA KEV, and EPSS is modest at 0.89% (76th percentile).
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary system commands by manipulating the tty_server argument passed to the setAdvancedInfoShow function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists and the CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) indicates trivial network-based exploitation yielding full confidentiality, integrity, and availability impact. EPSS is currently low (0.89%, 76th percentile) and there is no public exploit identified as being actively used in the wild per CISA KEV.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the sys_info argument passed to the setMiniuiHomeInfoShow function of /cgi-bin/cstecgi.cgi. Per the CVSS vector the attack is network-based with no privileges or user interaction required (PR:N/UI:N), and publicly available exploit code exists (published via VulDB/GitHub), though it is not listed in CISA KEV. EPSS is low at 0.89% (76th percentile), suggesting exploitation is plausible but not yet widespread.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to inject arbitrary operating-system commands through the telnet_enabled argument of the setTelnetCfg function in /cgi-bin/cstecgi.cgi. The flaw carries a CVSS 4.0 score of 8.9 with high impact to confidentiality, integrity, and availability, and publicly available exploit code exists, though it is not listed in CISA KEV. EPSS is modest at 0.89% (76th percentile), indicating publicly available exploit code exists but no confirmation of widespread active exploitation.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the HTTP argument processed by the CsteSystem function in /cgi-bin/cstecgi.cgi. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) indicates network-reachable, unauthenticated exploitation with high impact to confidentiality, integrity, and availability. Publicly available exploit code exists and a POC has been disclosed; there is no public exploit identified as actively exploited in the wild (not on CISA KEV), and EPSS is low at 0.89%.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote, unauthenticated attackers execute arbitrary shell commands by manipulating the 'mode' parameter passed to the setWiFiAclRules function in the /cgi-bin/cstecgi.cgi CGI handler. Publicly available exploit code exists (VulDB) and SSVC rates it automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile) and it is not listed in CISA KEV. With CVSS 4.0 of 8.9 and no authentication required, any attacker reaching the device's web interface can gain full control.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote unauthenticated attackers execute arbitrary system commands by manipulating the 'tz' parameter of the setNtpCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (published via VulDB), and the CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N, total impact) reflects unauthenticated network reachability with full compromise, though EPSS remains modest at 0.89%. This is no public exploit identified as actively exploited - there is no CISA KEV listing at time of analysis.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the sambaEnabled argument passed to the setStorageCfg function in /cgi-bin/cstecgi.cgi. The CVSS 4.0 vector indicates network-reachable, unauthenticated exploitation (AV:N/PR:N/UI:N) with total impact on confidentiality, integrity, and availability. Publicly available exploit code exists (VulDB), though EPSS remains modest at 0.89% (76th percentile) and it is not listed in CISA KEV.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote attackers inject arbitrary operating-system commands through the wanIdx argument of the setDmzCfg handler in /cgi-bin/cstecgi.cgi. The CGI Handler passes attacker-controlled input into a shell context without sanitization, yielding full command execution on the device. Publicly available exploit code exists and the SSVC framework rates technical impact as total and the attack as automatable, though it is not listed in CISA KEV and EPSS remains modest at 0.89%.
OS command injection in Totolink A8000RU 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the 'merge' parameter in the setWiFiEasyCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists on GitHub (Litengzheng/vuldb_new2), enabling trivial exploitation against internet-facing devices. CVSS 8.9 reflects network attack vector with no authentication required (AV:N/PR:N), and EPSS data suggests moderate real-world exploitation probability given the POC availability and low attack complexity.
OS command injection in Totolink A8000RU 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via crafted addrPrefixLen parameter to the setIpv6LanCfg function in /cgi-bin/cstecgi.cgi. CVSS 8.9 (High) with CVSS:4.0 vector indicating network-accessible, low-complexity attack requiring no privileges or user interaction. Publicly available exploit code exists (GitHub POC), enabling weaponization by threat actors. Not currently listed in CISA KEV, suggesting limited observed exploitation despite public disclosure and high severity scoring.
OS command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the setIptvCfg parameter in /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with network attack vector and no authentication required. Public exploit code available on GitHub since disclosure, significantly lowering exploitation barrier for attackers targeting internet-facing consumer routers. No vendor patch identified for this end-of-life device at time of analysis.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 enables remote unauthenticated attackers to execute arbitrary system commands via the pptpPassThru parameter in the setVpnPassCfg function. Public exploit code exists on GitHub, dramatically lowering the barrier to exploitation. CVSS v4.0 base score of 8.9 reflects network attack vector, low complexity, and no authentication requirements, with high impact to confidentiality, integrity, and availability of the vulnerable device.
Command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary operating system commands via the admpass parameter in the setPasswordCfg function of /cgi-bin/cstecgi.cgi. Public exploit code exists (CVSS 8.9, EPSS 0.89% / 76th percentile, SSVC: POC/automatable/total impact). Not listed in CISA KEV; real-world exploitation status unconfirmed beyond POC publication.
Stack-based buffer overflow in Totolink A3002MU router firmware B20211125.1046 allows authenticated remote attackers to execute arbitrary code via crafted 'wan-url' parameter in /boafrm/formWlanSetup endpoint. Publicly available exploit code exists (PoC on GitHub). EPSS score of 0.08% (23rd percentile) indicates low observed exploitation probability despite public exploit, likely due to authentication requirement (PR:L) and narrow attack surface of legacy consumer router product.
Stack-based buffer overflow in TOTOLINK A7000R router (firmware ≤9.1.0u.6115) allows authenticated remote attackers to achieve complete system compromise via the setWiFiEasyGuestCfg CGI function. The vulnerability exists in /cgi-bin/cstecgi.cgi where unsanitized input to the ssid5g parameter triggers memory corruption, enabling arbitrary code execution with device privileges. Publicly available exploit code exists, significantly lowering the barrier to exploitation for authenticated attackers on the network.
Buffer overflow in Totolink A800R router firmware 4.1.2cu.5137_B20200730 allows authenticated remote attackers to achieve arbitrary code execution with high confidentiality, integrity, and availability impact. The vulnerability resides in the setAppEasyWizardConfig function within /lib/cste_modules/app.so, triggered by malicious input to the apcliSsid parameter. Public exploit code is available on GitHub (CVSS 7.4, CVSS:4.0). Authentication is required (PR:L), but attack complexity is low (AC:L)
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the Comment parameter in the setIpQosRules function exposed through /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with network attack vector, low complexity, and no privileges required. Publicly available exploit code exists (GitHub POC published), significantly lowering the exploitation barrier for opportunistic attackers targeting vulnerable devices.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313 allows unauthenticated remote attackers to execute arbitrary system commands via the pppoeServiceName parameter in the setWanCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (GitHub POC), enabling trivial remote compromise with high impact on confidentiality, integrity, and availability. CVSS 8.9 (Critical) with network attack vector, low complexity, and no authentication required. SOHO router vulnerabilities like this are commonly targeted for botnet recruitment and lateral network movement.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via crafted wizard parameters to the setWizardCfg CGI function. Publicly available exploit code exists (GitHub POC), significantly lowering the barrier to exploitation. The CVSS 4.0 score of 8.9 reflects network-accessible attack vector with no authentication or user interaction required, enabling full compromise of router confidentiality, integrity, and availability.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via crafted FileName parameter to the UploadFirmwareFile function in /cgi-bin/cstecgi.cgi. CVSS 9.8 (Critical) with network attack vector, no privileges required, and complete system compromise possible. Publicly available exploit code exists (GitHub POC). No vendor-released patch identified at time of analysis. EPSS data not provided, but combination of critical CVSS, unauthenticated remote vector, and public exploit indicates high real-world exploitation risk.
OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the FileName parameter in UploadOpenVpnCert function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (POC on GitHub), enabling trivial exploitation with no authentication required. CVSS 9.8 (Critical) reflects network-based attack vector with low complexity and no privileges needed. No vendor-released patch identified at time of analysis.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via a crafted MAC address parameter to the setAccessDeviceCfg function in /cgi-bin/cstecgi.cgi. CVSS 9.8 (Critical) with publicly available exploit code on GitHub. No authentication, low complexity, network-exploitable. EPSS and KEV data not available, but public POC significantly lowers exploitation barrier for opportunistic attacks against internet-exposed router management interfaces.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setLedCfg function of /cgi-bin/cstecgi.cgi. Public exploit code exists (GitHub), making this vulnerability immediately weaponizable with CVSS 9.8 (Critical). EPSS data not available, but no CISA KEV listing indicates no confirmed widespread exploitation despite POC availability.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via the setTracerouteCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists on GitHub, significantly lowering the attack barrier. CVSS 9.8 (Critical) with network vector, low complexity, and no authentication required indicates maximum exploitability. While not confirmed in CISA KEV, the public POC makes this an immediate patching priority for affected devices.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via crafted requests to the /cgi-bin/cstecgi.cgi endpoint. The vulnerability resides in the setDiagnosisCfg function's insufficient validation of the 'ip' parameter. Publicly available exploit code exists (GitHub POC published), significantly lowering exploitation barriers. CVSS 9.8 (Critical) reflects network-accessible, low-complexity attack requiring no authentication. No vendor-released patch identified at time of analysis.
OS command injection in Totolink A7100RU router firmware (version 7.4cu.2313_b20191024) allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setAppCfg function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network attack vector, low complexity, and no authentication required. Publicly available exploit code exists on GitHub, significantly lowering the barrier to exploitation, though no CISA KEV listing indicates targeted campaigns have not been observed at time of analysis.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via the 'proto' parameter in setNetworkCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, significantly lowering the exploitation barrier. CVSS 9.8 (Critical) reflects network-accessible attack requiring no authentication or user interaction.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the ttyEnable parameter in the setTtyServiceCfg function of /cgi-bin/cstecgi.cgi. Public exploit code is available (GitHub POC published). CVSS 9.8 critical severity with network vector, low complexity, and no privileges required. No vendor-released patch identified at time of analysis, representing immediate risk to internet-facing devices.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the CGI interface. The setRadvdCfg function in /cgi-bin/cstecgi.cgi fails to sanitize the maxRtrAdvInterval parameter, enabling command injection through crafted HTTP requests. Publicly available exploit code exists on GitHub, significantly lowering exploitation barriers. CVSS 9.8 critical rating reflects network-accessible attack vector with no authentication or user interaction required, enabling full system compromise.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the User parameter in setVpnAccountCfg function at /cgi-bin/cstecgi.cgi endpoint. CVSS 9.8 critical severity with publicly available exploit code documented on GitHub. No authentication, low complexity, network-accessible attack vector enables full system compromise with high confidentiality, integrity, and availability impact.
Remote unauthenticated OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables complete system compromise. Attackers exploit the setPptpServerCfg function in /cgi-bin/cstecgi.cgi CGI handler by injecting malicious commands through the 'enable' parameter. CVSS 9.8 critical severity reflects network-accessible attack requiring no privileges or user interaction. Publicly available exploit code exists, significantly lowering exploitation barrier for remote attackers seeking router takeover, data exfiltration, or network pivoting.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setUrlFilterRules function of /cgi-bin/cstecgi.cgi. Exploitation requires no user interaction, granting complete device compromise with potential for lateral network movement. Publicly available exploit code exists (GitHub POC). CVSS 9.8 severity reflects network-accessible attack vector with no privilege requirements.
Remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands. The vulnerability resides in the setPortalConfWeChat function within /cgi-bin/cstecgi.cgi, exploitable by manipulating the 'enable' parameter. CVSS 9.8 severity reflects network-accessible attack vector requiring no authentication or user interaction, with full system compromise potential. Publicly available exploit code exists, significantly lowering exploitation barrier for remote attackers targeting vulnerable router deployments.
Remote unauthenticated OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows arbitrary command execution via the setSyslogCfg function in /cgi-bin/cstecgi.cgi. Attackers exploit the 'enable' parameter without authentication to achieve full system compromise. CVSS 9.8 critical severity reflects network accessibility, no complexity barriers, and complete confidentiality/integrity/availability impact. Publicly available exploit code exists, significantly lowering attack barrier for opportunistic scanning campaigns targeting consumer routers.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the admpass parameter in setLoginPasswordCfg function of /cgi-bin/cstecgi.cgi. Network-accessible with no user interaction required. Publicly available exploit code exists. CVSS 9.8 critical severity reflects complete system compromise potential.
OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the tty_server parameter in the setAdvancedInfoShow function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity reflects network-accessible exploitation requiring no authentication or user interaction. Publicly available exploit code exists. Attackers can achieve full system compromise including data exfiltration, configuration tampering, and denial of service against affected routers.
OS command injection in Totolink A7100RU 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via malicious lan_info parameter to setMiniuiHomeInfoShow function in /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network attack vector requiring no privileges or user interaction. Publicly available exploit code exists. Complete compromise of confidentiality, integrity, and availability achievable through CGI handler manipulation.
Remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 via unauthenticated manipulation of telnet_enabled parameter in setTelnetCfg function. Critical CVSS 9.8 score reflects network-accessible attack requiring no authentication or user interaction, enabling full system compromise. Publicly available exploit code exists. Impacts router confidentiality, integrity, and availability with potential for complete device takeover and lateral network movement.
Unauthenticated OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows remote attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiGuestCfg function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network-accessible attack vector requiring no authentication or user interaction. Publicly available exploit code exists. Successful exploitation enables complete device compromise with high impact to confidentiality, integrity, and availability.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'mode' parameter in the setWiFiAclRules function (/cgi-bin/cstecgi.cgi). Publicly available exploit code exists. Attackers can achieve complete device compromise with high impact to confidentiality, integrity, and availability of the router. No authentication required for exploitation (CVSS PR:N).
Remote OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiBasicCfg function of /cgi-bin/cstecgi.cgi. This vulnerability enables complete device compromise with high impact to confidentiality, integrity, and availability. Publicly available exploit code exists. No CISA KEV listing identified at time of analysis.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via crafted sambaEnabled parameter in setStorageCfg function of /cgi-bin/cstecgi.cgi CGI handler. Publicly available exploit code exists. Network-reachable attack vector requires no user interaction, enabling full system compromise of affected routers.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the wanIdx parameter in the setDmzCfg function within /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with attack complexity low, no privileges required, and no user interaction. Publicly available exploit code exists. Exploitation enables complete compromise of device confidentiality, integrity, and availability with total technical impact.
OS command injection in Totolink A7100RU router 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'merge' parameter in setWiFiEasyCfg function within /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity. Publicly available exploit code exists. Attack requires no authentication or user interaction, enabling complete system compromise including data exfiltration, configuration tampering, and denial of service.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 enables unauthenticated remote attackers to execute arbitrary system commands via crafted addrPrefixLen parameter in setIpv6LanCfg function of /cgi-bin/cstecgi.cgi CGI handler. CVSS 9.8 critical severity reflects network-accessible attack vector requiring no privileges or user interaction, with complete confidentiality, integrity, and availability impact. Publicly available exploit code exists.
Unauthenticated remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables complete system compromise via the setIptvCfg function in /cgi-bin/cstecgi.cgi. Attackers inject malicious commands through the igmpVer parameter without authentication, achieving arbitrary code execution with router privileges. CVSS 9.8 (Critical). Publicly available exploit code exists. No authentication, network-accessible attack vector with low complexity allows immediate weaponization for botnet recruitment, credential theft, or lateral network movement.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in setUPnPCfg function within /cgi-bin/cstecgi.cgi. Publicly available exploit code exists. No vendor-released patch identified at time of analysis. CVSS 8.9 (Critical) reflects network-accessible attack requiring no user interaction.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the pptpPassThru parameter in setVpnPassCfg function of /cgi-bin/cstecgi.cgi. Exploitation requires no user interaction and achieves full system compromise (confidentiality, integrity, availability). Publicly available exploit code exists. Attack vector is network-accessible without authentication (CVSS 8.9 Critical).
Buffer overflow in Totolink LR350 router firmware 9.3.5u.6369_B20220309 allows remote authenticated attackers to execute arbitrary code via crafted SSID input to the setWiFiGuestCfg function in /cgi-bin/cstecgi.cgi. The vulnerability has a publicly available exploit code and affects the web management interface. CVSS 7.4 (High) with low attack complexity indicates significant risk, though exploitation requires low-privilege authentication (PR:L). No CISA KEV listing indicates no confirmed widespread exploitation at time of analysis.
This vulnerability is an OS command injection flaw in the setLanCfg function of TOTOLINK X6000R routers running firmware versions 9.4.0cu.1360_B20241207 and 9.4.0cu.1498_B20250826. An authenticated attacker with high privileges can execute arbitrary operating system commands by manipulating the Hostname parameter in /usr/sbin/shttpd, potentially leading to complete device compromise. The vulnerability was disclosed via VulDB submission with proof-of-concept information available through reference ID 352475, though no active exploitation (KEV listing) has been reported.
Command injection in TOTOLINK N300RH router firmware 6.1c.1353 via setDiagnosisCfg handler. EPSS 4.0% with PoC available — high exploitation probability for consumer routers.
Stack-based buffer overflow in TOTOLIK A3002RU firmware versions up to V3.0.0-B20220304.1804 allows authenticated attackers to achieve remote code execution through a malicious static_ipv6 parameter. Public exploit code exists for this vulnerability, and no patch is currently available. The high CVSS score of 8.8 reflects the complete compromise of system confidentiality, integrity, and availability for affected devices.
Stack overflow vulnerabilities in TOTOLIK A3002RU V2.1.1 router firmware allow authenticated attackers to achieve remote code execution through malformed vpnUser or vpnPassword parameters. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected devices at risk of complete compromise.
Remote code execution in TOTOLIK A3002RU V2.1.1 firmware results from a stack-based buffer overflow in the DNS configuration function that can be exploited by authenticated network users. Public exploit code exists for this vulnerability, and attackers with valid credentials can achieve full system compromise including code execution and data manipulation. No patch is currently available.
Buffer overflow in Totolink A3600R firmware version 5.9c.4959 allows authenticated remote attackers to execute arbitrary code through the setAppEasyWizardConfig function via a malformed apcliSsid parameter. Public exploit code exists for this vulnerability and no patch is currently available. Affected devices are at high risk given the lack of mitigation options and active exploitation potential.
Buffer overflow in Totolik NR1800X firmware allows authenticated remote attackers to achieve complete system compromise through malformed SSID parameters in the setWizardCfg POST handler. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to remote code execution. This vulnerability requires valid credentials but presents critical risk given the device's network exposure and lack of mitigation options.
Buffer overflow in Totolik LR350 firmware allows authenticated remote attackers to achieve full system compromise through malicious SSID parameters in the wizard configuration endpoint. Public exploit code is available for this vulnerability, and no patch has been released, leaving deployed devices at immediate risk. The flaw requires valid credentials but enables complete confidentiality, integrity, and availability violations with network-level access.
Stack-based buffer overflow in Totolink LR350 firmware (version 9.3.5u.6369_B20220309) allows authenticated remote attackers to achieve complete system compromise through manipulation of the ssid parameter in the WiFi configuration function. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to active exploitation. The vulnerability requires valid credentials but poses critical risk due to high-impact consequences including arbitrary code execution.
Unauthenticated remote attackers can exploit a buffer overflow in the WiFi configuration function of Totolink LR350 firmware version 9.3.5u.6369_B20220309 to achieve remote code execution with full system compromise. The vulnerability exists in the ssid parameter handler of /cgi-bin/cstecgi.cgi and requires only network access to trigger, with public exploit code already available. No patch is currently available for affected devices.
Buffer overflow in Totolink LR350 firmware allows authenticated remote attackers to achieve complete system compromise through a malformed SSID parameter in the WiFi guest configuration function. Public exploit code exists for this vulnerability, and no patch is currently available. An attacker with network access and valid credentials can execute arbitrary code with full system privileges.
Buffer overflow in TOTOLIK A3700R firmware version 9.1.2u.5822_B20200513 allows authenticated remote attackers to achieve complete system compromise through manipulation of the ssid parameter in the WiFi guest configuration function. Public exploit code exists for this vulnerability and no patch is currently available. An attacker with network access and valid credentials can execute arbitrary code with full system privileges.
TOTOLINK X5000R V9.1.0u.6118_B20201102 and V9.1.0u.6369_B20230113 contain a command insertion vulnerability in setting/setTracerouteCfg. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Path traversal in the Totolink A3002MU router's File Upload Handler (firmware 1.0.0-B20230403.1455) allows remote unauthenticated attackers to write files outside the intended upload directory by manipulating the 'filename' argument to /boafrm/formUploadFile. Publicly available exploit code exists, but there is no confirmed active exploitation (CISA KEV). The CVSS 4.0 score is 5.3 with low confidentiality, integrity, and availability impact, and the vector requires passive user interaction (UI:P), so exploitation is not fully unattended. Realistic risk depends on whether the upload interface is reachable from untrusted networks.
OS command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter sent to the setQosCfg function of /cgi-bin/cstecgi.cgi in the Web Management Interface. Publicly available exploit code exists per VulDB submission, and the SSVC framework rates technical impact as total with automatable exploitation, though EPSS probability remains modest at 0.89%.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows unauthenticated remote attackers to execute arbitrary operating system commands by manipulating the wscDisabled parameter sent to the setWiFiWpsCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB disclosure, though EPSS probability remains modest at 0.89% (76th percentile) and the vulnerability is not listed in CISA KEV.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' argument passed to the setMacFilterRules function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB, and SSVC categorizes the technical impact as total with automatable exploitation, though EPSS remains modest at 0.89% (76th percentile).
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the bgProtection parameter in the setWiFiAdvancedCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists per VulDB, and SSVC classifies the issue as automatable with total technical impact, though EPSS exploitation probability remains modest at 0.89% (76th percentile).
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter passed to the setStaticDhcpRules function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists and SSVC rates this as automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile). Exploitation requires no authentication or user interaction, making any internet-exposed management interface a high-priority target.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the firewallType parameter sent to /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the SSVC framework rates the technical impact as total with automatable exploitation, though it is not currently listed in CISA KEV. EPSS sits at 0.89% (76th percentile), suggesting moderate but not yet widespread opportunistic exploitation.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the 'enable' parameter of the setRemoteCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, raising the practical risk despite the device not being listed in CISA KEV; EPSS sits at 0.89% (76th percentile), reflecting moderate predicted exploitation likelihood.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' parameter passed to the setGameSpeedCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, raising the practical threat despite a modest EPSS score of 0.89% (76th percentile). No active exploitation has been confirmed via CISA KEV at time of analysis.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary shell commands by manipulating the 'provider' argument passed to the setDdnsCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (CVSS 4.0 base 8.9, EPSS 0.89%), and no CISA KEV listing has been issued, but the combination of zero-privilege network exploitation and a working PoC against consumer/SOHO networking gear makes this a high-priority issue for any exposed device.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'mode' parameter sent to the setScheduleCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (published via VulDB and a GitHub PoC), though there is no public exploit identified as actively exploited in the wild and EPSS probability is modest at 0.89%. The flaw resides in the device's Web Management Interface and can be triggered over the network without user interaction, making any internet-exposed device immediately at risk.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the resetFlags parameter handled by the setUpgradeFW function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the SSVC framework classifies exploitation as automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile).
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands through the setLanguageCfg function in /cgi-bin/cstecgi.cgi. The flaw is triggered by manipulating the lang argument in the Web Management Interface, with publicly available exploit code existing and SSVC classifying the issue as automatable with total technical impact. EPSS sits at 0.89% (76th percentile), indicating moderate but non-trivial exploitation probability.
Remote OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'command' argument in the setTracerouteCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the CVSS 4.0 vector confirms network-reachable, low-complexity exploitation without authentication or user interaction, though EPSS remains modest at 0.89% (76th percentile) and the issue is not listed in CISA KEV.
OS command injection in the Totolink A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary operating system commands via the ip parameter handled by the setDiagnosisCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, and the CVSS 4.0 score of 8.9 reflects high impact across confidentiality, integrity, and availability. EPSS is moderate at 0.89% (76th percentile), and the vulnerability is not currently listed in CISA KEV.
Buffer overflow in Totolink X5000R 9.1.0u.6369_B20230113 router firmware allows authenticated remote attackers to execute arbitrary code or cause denial of service via crafted submit-url parameter to /boafrm/formDdns endpoint. Public exploit code exists (GitHub). CVSS 7.4 indicates high severity but requires authenticated access (PR:L), limiting immediate risk to environments where router credentials are compromised. EPSS data not available; prioritize if router exposed to internet or untrusted networks.
Remote unauthenticated command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows attackers to execute arbitrary OS commands via the 'enable' parameter in the setAppFilterCfg function. Exploitation requires no authentication or user interaction, with a publicly available proof-of-concept exploit published on GitHub. CVSS 8.9 reflects critical impact across confidentiality, integrity, and availability, though EPSS data is unavailable to assess real-world exploitation probability. Not currently listed in CISA KEV, suggesting targeted rather than widespread exploitation at time of analysis.
Remote authenticated attackers can execute arbitrary code on Totolink N300RH 3.2.4-B20220812 routers via buffer overflow in the setMacFilterRules function. Exploitation requires low-privilege authentication to the router's web interface, then sending a crafted POST request with an oversized mac_address parameter to /cgi-bin/cstecgi.cgi. Public exploit code is available (documented on Notion), significantly lowering the barrier to exploitation. EPSS data not available, but the combination of network attack vector, publicly available POC, and vulnerable IoT device suggest moderate real-world risk for internet-exposed routers with default or weak credentials.
Buffer overflow in Totolink N300RH router firmware 3.2.4-B20220812 allows authenticated remote attackers to achieve complete device compromise via crafted DNS parameter in WAN configuration requests. The vulnerability exists in the setWanConfig function within /cgi-bin/cstecgi.cgi POST handler, exploitable by manipulating the priDns argument. Public exploit code is available (CVSS E:P), and CVSS 4.0 score of 7.4 reflects high confidentiality, integrity, and availability impact on the vulnerable device with no cross-scope effects.
Buffer overflow in Totolink N300RH router firmware 3.2.4-B20220812 enables authenticated remote attackers to achieve code execution via crafted FileName parameter to the setUpgradeFW function in /cgi-bin/cstecgi.cgi. Public exploit code is available (documented in Notion). CVSS 7.4 with CVSS 4.0 Exploit maturity 'Proof-of-concept' confirms POC exists. Not listed in CISA KEV, suggesting limited real-world exploitation despite public POC.
Remote unauthenticated attackers can execute arbitrary code on Totolink N300RH routers version 3.2.4-B20220812 by sending crafted Password parameter values to the loginauth authentication function in /cgi-bin/cstecgi.cgi, triggering a stack-based buffer overflow. Exploitation probability is moderate (EPSS score not provided, but publicly available exploit code exists per VulDB reference). This affects consumer-grade wireless routers often deployed in home/SOHO environments with default internet-facing management interfaces, creating significant remote compromise risk despite the device's end-of-life status.
Remote unauthenticated buffer overflow in Totolink WA300 wireless repeater firmware version 5.2cu.7112_B20190227 enables complete device compromise via crafted HTTP POST requests to the login authentication handler. The vulnerability resides in the loginauth function within /cgi-bin/cstecgi.cgi, where insufficient validation of the http_host parameter allows attackers to overflow memory and achieve arbitrary code execution with device privileges. Publicly available exploit code exists (documented via Notion), enabling trivial exploitation with EPSS probability assessment pending but attack complexity rated low (AC:L) with no authentication barrier (PR:N).
Buffer overflow in Totolink WA300 wireless range extender firmware 5.2cu.7112_B20190227 allows authenticated remote attackers to execute arbitrary code or crash the device via crafted File parameter to the UploadCustomModule function in /cgi-bin/cstecgi.cgi. Public proof-of-concept exploit exists (documented in Notion page), enabling low-skill exploitation. EPSS data not available, but low attack complexity (AC:L) and network attack vector (AV:N) combined with public POC indicate elevated real-world risk for affected devices exposed to untrusted authenticated users.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the 'proto' parameter in /cgi-bin/cstecgi.cgi CGI handler. A public proof-of-concept exploit exists on GitHub, significantly lowering the barrier for exploitation. CVSS 8.9 with network vector, low complexity, and no authentication requirements makes this immediately exploitable against internet-facing devices running the vulnerable firmware version.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the User parameter in the setVpnAccountCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (GitHub POC), enabling immediate weaponization. CVSS 8.9 with full impact on confidentiality, integrity, and availability. EPSS data unavailable; not currently in CISA KEV, but the combination of network accessibility, no authentication requirement, and public exploit makes this a critical risk for internet-facing devices.
Buffer overflow in Totolink N300RT router firmware 3.4.0-B20250430 allows authenticated remote attackers with high-privilege administrative access to execute arbitrary code via crafted input to the entry_name parameter in /boafrm/formIpQoS. Public exploit code is available on GitHub demonstrating the vulnerability. EPSS data not provided, but the requirement for high-privilege authentication significantly limits real-world exploitation surface to scenarios where administrative credentials are already compromised.
Buffer overflow in Totolink N300RT 3.4.0-B20250430 enables authenticated remote code execution via the WPS configuration handler. An attacker with administrative credentials (PR:H) can send a crafted localPin parameter to /boafrm/formWsc, overflowing a buffer in the is_cmd_string_valid function (libapmib.so) to execute arbitrary code with full system access (VC:H/VI:H/VA:H). Public proof-of-concept exploit code exists on GitHub (xiaohaiyang-ai/TOTOLINK-N300RT-Buffer-Overflow), increasing weaponization risk despite requiring privileged access. EPSS data not available; no CISA KEV listing indicates exploitation not yet widespread in wild attacks.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote attackers execute arbitrary shell commands by injecting into the admpass argument of the setLoginPasswordCfg function in /cgi-bin/cstecgi.cgi. The CGI Handler passes attacker-controlled input to a system shell without sanitization, granting full device compromise. Publicly available exploit code exists (disclosed via VulDB/GitHub); no active exploitation is confirmed in CISA KEV, and EPSS is modest at 0.89% (76th percentile).
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote unauthenticated attackers to execute arbitrary system commands by manipulating the tty_server argument passed to the setAdvancedInfoShow function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists and the CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) indicates trivial network-based exploitation yielding full confidentiality, integrity, and availability impact. EPSS is currently low (0.89%, 76th percentile) and there is no public exploit identified as being actively used in the wild per CISA KEV.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the sys_info argument passed to the setMiniuiHomeInfoShow function of /cgi-bin/cstecgi.cgi. Per the CVSS vector the attack is network-based with no privileges or user interaction required (PR:N/UI:N), and publicly available exploit code exists (published via VulDB/GitHub), though it is not listed in CISA KEV. EPSS is low at 0.89% (76th percentile), suggesting exploitation is plausible but not yet widespread.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to inject arbitrary operating-system commands through the telnet_enabled argument of the setTelnetCfg function in /cgi-bin/cstecgi.cgi. The flaw carries a CVSS 4.0 score of 8.9 with high impact to confidentiality, integrity, and availability, and publicly available exploit code exists, though it is not listed in CISA KEV. EPSS is modest at 0.89% (76th percentile), indicating publicly available exploit code exists but no confirmation of widespread active exploitation.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the HTTP argument processed by the CsteSystem function in /cgi-bin/cstecgi.cgi. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) indicates network-reachable, unauthenticated exploitation with high impact to confidentiality, integrity, and availability. Publicly available exploit code exists and a POC has been disclosed; there is no public exploit identified as actively exploited in the wild (not on CISA KEV), and EPSS is low at 0.89%.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote, unauthenticated attackers execute arbitrary shell commands by manipulating the 'mode' parameter passed to the setWiFiAclRules function in the /cgi-bin/cstecgi.cgi CGI handler. Publicly available exploit code exists (VulDB) and SSVC rates it automatable with total technical impact, though EPSS remains modest at 0.89% (76th percentile) and it is not listed in CISA KEV. With CVSS 4.0 of 8.9 and no authentication required, any attacker reaching the device's web interface can gain full control.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote unauthenticated attackers execute arbitrary system commands by manipulating the 'tz' parameter of the setNtpCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (published via VulDB), and the CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N, total impact) reflects unauthenticated network reachability with full compromise, though EPSS remains modest at 0.89%. This is no public exploit identified as actively exploited - there is no CISA KEV listing at time of analysis.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) allows remote attackers to execute arbitrary operating-system commands by manipulating the sambaEnabled argument passed to the setStorageCfg function in /cgi-bin/cstecgi.cgi. The CVSS 4.0 vector indicates network-reachable, unauthenticated exploitation (AV:N/PR:N/UI:N) with total impact on confidentiality, integrity, and availability. Publicly available exploit code exists (VulDB), though EPSS remains modest at 0.89% (76th percentile) and it is not listed in CISA KEV.
OS command injection in the TOTOLINK A8000RU router (firmware 7.1cu.643_b20200521) lets remote attackers inject arbitrary operating-system commands through the wanIdx argument of the setDmzCfg handler in /cgi-bin/cstecgi.cgi. The CGI Handler passes attacker-controlled input into a shell context without sanitization, yielding full command execution on the device. Publicly available exploit code exists and the SSVC framework rates technical impact as total and the attack as automatable, though it is not listed in CISA KEV and EPSS remains modest at 0.89%.
OS command injection in Totolink A8000RU 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the 'merge' parameter in the setWiFiEasyCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists on GitHub (Litengzheng/vuldb_new2), enabling trivial exploitation against internet-facing devices. CVSS 8.9 reflects network attack vector with no authentication required (AV:N/PR:N), and EPSS data suggests moderate real-world exploitation probability given the POC availability and low attack complexity.
OS command injection in Totolink A8000RU 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via crafted addrPrefixLen parameter to the setIpv6LanCfg function in /cgi-bin/cstecgi.cgi. CVSS 8.9 (High) with CVSS:4.0 vector indicating network-accessible, low-complexity attack requiring no privileges or user interaction. Publicly available exploit code exists (GitHub POC), enabling weaponization by threat actors. Not currently listed in CISA KEV, suggesting limited observed exploitation despite public disclosure and high severity scoring.
OS command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the setIptvCfg parameter in /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with network attack vector and no authentication required. Public exploit code available on GitHub since disclosure, significantly lowering exploitation barrier for attackers targeting internet-facing consumer routers. No vendor patch identified for this end-of-life device at time of analysis.
OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 enables remote unauthenticated attackers to execute arbitrary system commands via the pptpPassThru parameter in the setVpnPassCfg function. Public exploit code exists on GitHub, dramatically lowering the barrier to exploitation. CVSS v4.0 base score of 8.9 reflects network attack vector, low complexity, and no authentication requirements, with high impact to confidentiality, integrity, and availability of the vulnerable device.
Command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary operating system commands via the admpass parameter in the setPasswordCfg function of /cgi-bin/cstecgi.cgi. Public exploit code exists (CVSS 8.9, EPSS 0.89% / 76th percentile, SSVC: POC/automatable/total impact). Not listed in CISA KEV; real-world exploitation status unconfirmed beyond POC publication.
Stack-based buffer overflow in Totolink A3002MU router firmware B20211125.1046 allows authenticated remote attackers to execute arbitrary code via crafted 'wan-url' parameter in /boafrm/formWlanSetup endpoint. Publicly available exploit code exists (PoC on GitHub). EPSS score of 0.08% (23rd percentile) indicates low observed exploitation probability despite public exploit, likely due to authentication requirement (PR:L) and narrow attack surface of legacy consumer router product.
Stack-based buffer overflow in TOTOLINK A7000R router (firmware ≤9.1.0u.6115) allows authenticated remote attackers to achieve complete system compromise via the setWiFiEasyGuestCfg CGI function. The vulnerability exists in /cgi-bin/cstecgi.cgi where unsanitized input to the ssid5g parameter triggers memory corruption, enabling arbitrary code execution with device privileges. Publicly available exploit code exists, significantly lowering the barrier to exploitation for authenticated attackers on the network.
Buffer overflow in Totolink A800R router firmware 4.1.2cu.5137_B20200730 allows authenticated remote attackers to achieve arbitrary code execution with high confidentiality, integrity, and availability impact. The vulnerability resides in the setAppEasyWizardConfig function within /lib/cste_modules/app.so, triggered by malicious input to the apcliSsid parameter. Public exploit code is available on GitHub (CVSS 7.4, CVSS:4.0). Authentication is required (PR:L), but attack complexity is low (AC:L)
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the Comment parameter in the setIpQosRules function exposed through /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with network attack vector, low complexity, and no privileges required. Publicly available exploit code exists (GitHub POC published), significantly lowering the exploitation barrier for opportunistic attackers targeting vulnerable devices.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313 allows unauthenticated remote attackers to execute arbitrary system commands via the pppoeServiceName parameter in the setWanCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (GitHub POC), enabling trivial remote compromise with high impact on confidentiality, integrity, and availability. CVSS 8.9 (Critical) with network attack vector, low complexity, and no authentication required. SOHO router vulnerabilities like this are commonly targeted for botnet recruitment and lateral network movement.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via crafted wizard parameters to the setWizardCfg CGI function. Publicly available exploit code exists (GitHub POC), significantly lowering the barrier to exploitation. The CVSS 4.0 score of 8.9 reflects network-accessible attack vector with no authentication or user interaction required, enabling full compromise of router confidentiality, integrity, and availability.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via crafted FileName parameter to the UploadFirmwareFile function in /cgi-bin/cstecgi.cgi. CVSS 9.8 (Critical) with network attack vector, no privileges required, and complete system compromise possible. Publicly available exploit code exists (GitHub POC). No vendor-released patch identified at time of analysis. EPSS data not provided, but combination of critical CVSS, unauthenticated remote vector, and public exploit indicates high real-world exploitation risk.
OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the FileName parameter in UploadOpenVpnCert function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (POC on GitHub), enabling trivial exploitation with no authentication required. CVSS 9.8 (Critical) reflects network-based attack vector with low complexity and no privileges needed. No vendor-released patch identified at time of analysis.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via a crafted MAC address parameter to the setAccessDeviceCfg function in /cgi-bin/cstecgi.cgi. CVSS 9.8 (Critical) with publicly available exploit code on GitHub. No authentication, low complexity, network-exploitable. EPSS and KEV data not available, but public POC significantly lowers exploitation barrier for opportunistic attacks against internet-exposed router management interfaces.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setLedCfg function of /cgi-bin/cstecgi.cgi. Public exploit code exists (GitHub), making this vulnerability immediately weaponizable with CVSS 9.8 (Critical). EPSS data not available, but no CISA KEV listing indicates no confirmed widespread exploitation despite POC availability.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via the setTracerouteCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists on GitHub, significantly lowering the attack barrier. CVSS 9.8 (Critical) with network vector, low complexity, and no authentication required indicates maximum exploitability. While not confirmed in CISA KEV, the public POC makes this an immediate patching priority for affected devices.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via crafted requests to the /cgi-bin/cstecgi.cgi endpoint. The vulnerability resides in the setDiagnosisCfg function's insufficient validation of the 'ip' parameter. Publicly available exploit code exists (GitHub POC published), significantly lowering exploitation barriers. CVSS 9.8 (Critical) reflects network-accessible, low-complexity attack requiring no authentication. No vendor-released patch identified at time of analysis.
OS command injection in Totolink A7100RU router firmware (version 7.4cu.2313_b20191024) allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setAppCfg function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network attack vector, low complexity, and no authentication required. Publicly available exploit code exists on GitHub, significantly lowering the barrier to exploitation, though no CISA KEV listing indicates targeted campaigns have not been observed at time of analysis.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands with router privileges via the 'proto' parameter in setNetworkCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists, significantly lowering the exploitation barrier. CVSS 9.8 (Critical) reflects network-accessible attack requiring no authentication or user interaction.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the ttyEnable parameter in the setTtyServiceCfg function of /cgi-bin/cstecgi.cgi. Public exploit code is available (GitHub POC published). CVSS 9.8 critical severity with network vector, low complexity, and no privileges required. No vendor-released patch identified at time of analysis, representing immediate risk to internet-facing devices.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the CGI interface. The setRadvdCfg function in /cgi-bin/cstecgi.cgi fails to sanitize the maxRtrAdvInterval parameter, enabling command injection through crafted HTTP requests. Publicly available exploit code exists on GitHub, significantly lowering exploitation barriers. CVSS 9.8 critical rating reflects network-accessible attack vector with no authentication or user interaction required, enabling full system compromise.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the User parameter in setVpnAccountCfg function at /cgi-bin/cstecgi.cgi endpoint. CVSS 9.8 critical severity with publicly available exploit code documented on GitHub. No authentication, low complexity, network-accessible attack vector enables full system compromise with high confidentiality, integrity, and availability impact.
Remote unauthenticated OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables complete system compromise. Attackers exploit the setPptpServerCfg function in /cgi-bin/cstecgi.cgi CGI handler by injecting malicious commands through the 'enable' parameter. CVSS 9.8 critical severity reflects network-accessible attack requiring no privileges or user interaction. Publicly available exploit code exists, significantly lowering exploitation barrier for remote attackers seeking router takeover, data exfiltration, or network pivoting.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setUrlFilterRules function of /cgi-bin/cstecgi.cgi. Exploitation requires no user interaction, granting complete device compromise with potential for lateral network movement. Publicly available exploit code exists (GitHub POC). CVSS 9.8 severity reflects network-accessible attack vector with no privilege requirements.
Remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands. The vulnerability resides in the setPortalConfWeChat function within /cgi-bin/cstecgi.cgi, exploitable by manipulating the 'enable' parameter. CVSS 9.8 severity reflects network-accessible attack vector requiring no authentication or user interaction, with full system compromise potential. Publicly available exploit code exists, significantly lowering exploitation barrier for remote attackers targeting vulnerable router deployments.
Remote unauthenticated OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 allows arbitrary command execution via the setSyslogCfg function in /cgi-bin/cstecgi.cgi. Attackers exploit the 'enable' parameter without authentication to achieve full system compromise. CVSS 9.8 critical severity reflects network accessibility, no complexity barriers, and complete confidentiality/integrity/availability impact. Publicly available exploit code exists, significantly lowering attack barrier for opportunistic scanning campaigns targeting consumer routers.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the admpass parameter in setLoginPasswordCfg function of /cgi-bin/cstecgi.cgi. Network-accessible with no user interaction required. Publicly available exploit code exists. CVSS 9.8 critical severity reflects complete system compromise potential.
OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the tty_server parameter in the setAdvancedInfoShow function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity reflects network-accessible exploitation requiring no authentication or user interaction. Publicly available exploit code exists. Attackers can achieve full system compromise including data exfiltration, configuration tampering, and denial of service against affected routers.
OS command injection in Totolink A7100RU 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via malicious lan_info parameter to setMiniuiHomeInfoShow function in /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network attack vector requiring no privileges or user interaction. Publicly available exploit code exists. Complete compromise of confidentiality, integrity, and availability achievable through CGI handler manipulation.
Remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 via unauthenticated manipulation of telnet_enabled parameter in setTelnetCfg function. Critical CVSS 9.8 score reflects network-accessible attack requiring no authentication or user interaction, enabling full system compromise. Publicly available exploit code exists. Impacts router confidentiality, integrity, and availability with potential for complete device takeover and lateral network movement.
Unauthenticated OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows remote attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiGuestCfg function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network-accessible attack vector requiring no authentication or user interaction. Publicly available exploit code exists. Successful exploitation enables complete device compromise with high impact to confidentiality, integrity, and availability.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'mode' parameter in the setWiFiAclRules function (/cgi-bin/cstecgi.cgi). Publicly available exploit code exists. Attackers can achieve complete device compromise with high impact to confidentiality, integrity, and availability of the router. No authentication required for exploitation (CVSS PR:N).
Remote OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiBasicCfg function of /cgi-bin/cstecgi.cgi. This vulnerability enables complete device compromise with high impact to confidentiality, integrity, and availability. Publicly available exploit code exists. No CISA KEV listing identified at time of analysis.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via crafted sambaEnabled parameter in setStorageCfg function of /cgi-bin/cstecgi.cgi CGI handler. Publicly available exploit code exists. Network-reachable attack vector requires no user interaction, enabling full system compromise of affected routers.
OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the wanIdx parameter in the setDmzCfg function within /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with attack complexity low, no privileges required, and no user interaction. Publicly available exploit code exists. Exploitation enables complete compromise of device confidentiality, integrity, and availability with total technical impact.
OS command injection in Totolink A7100RU router 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'merge' parameter in setWiFiEasyCfg function within /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity. Publicly available exploit code exists. Attack requires no authentication or user interaction, enabling complete system compromise including data exfiltration, configuration tampering, and denial of service.
OS command injection in Totolink A7100RU router version 7.4cu.2313_b20191024 enables unauthenticated remote attackers to execute arbitrary system commands via crafted addrPrefixLen parameter in setIpv6LanCfg function of /cgi-bin/cstecgi.cgi CGI handler. CVSS 9.8 critical severity reflects network-accessible attack vector requiring no privileges or user interaction, with complete confidentiality, integrity, and availability impact. Publicly available exploit code exists.
Unauthenticated remote OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 enables complete system compromise via the setIptvCfg function in /cgi-bin/cstecgi.cgi. Attackers inject malicious commands through the igmpVer parameter without authentication, achieving arbitrary code execution with router privileges. CVSS 9.8 (Critical). Publicly available exploit code exists. No authentication, network-accessible attack vector with low complexity allows immediate weaponization for botnet recruitment, credential theft, or lateral network movement.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in setUPnPCfg function within /cgi-bin/cstecgi.cgi. Publicly available exploit code exists. No vendor-released patch identified at time of analysis. CVSS 8.9 (Critical) reflects network-accessible attack requiring no user interaction.
OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the pptpPassThru parameter in setVpnPassCfg function of /cgi-bin/cstecgi.cgi. Exploitation requires no user interaction and achieves full system compromise (confidentiality, integrity, availability). Publicly available exploit code exists. Attack vector is network-accessible without authentication (CVSS 8.9 Critical).
Buffer overflow in Totolink LR350 router firmware 9.3.5u.6369_B20220309 allows remote authenticated attackers to execute arbitrary code via crafted SSID input to the setWiFiGuestCfg function in /cgi-bin/cstecgi.cgi. The vulnerability has a publicly available exploit code and affects the web management interface. CVSS 7.4 (High) with low attack complexity indicates significant risk, though exploitation requires low-privilege authentication (PR:L). No CISA KEV listing indicates no confirmed widespread exploitation at time of analysis.
This vulnerability is an OS command injection flaw in the setLanCfg function of TOTOLINK X6000R routers running firmware versions 9.4.0cu.1360_B20241207 and 9.4.0cu.1498_B20250826. An authenticated attacker with high privileges can execute arbitrary operating system commands by manipulating the Hostname parameter in /usr/sbin/shttpd, potentially leading to complete device compromise. The vulnerability was disclosed via VulDB submission with proof-of-concept information available through reference ID 352475, though no active exploitation (KEV listing) has been reported.
Command injection in TOTOLINK N300RH router firmware 6.1c.1353 via setDiagnosisCfg handler. EPSS 4.0% with PoC available — high exploitation probability for consumer routers.
Stack-based buffer overflow in TOTOLIK A3002RU firmware versions up to V3.0.0-B20220304.1804 allows authenticated attackers to achieve remote code execution through a malicious static_ipv6 parameter. Public exploit code exists for this vulnerability, and no patch is currently available. The high CVSS score of 8.8 reflects the complete compromise of system confidentiality, integrity, and availability for affected devices.
Stack overflow vulnerabilities in TOTOLIK A3002RU V2.1.1 router firmware allow authenticated attackers to achieve remote code execution through malformed vpnUser or vpnPassword parameters. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected devices at risk of complete compromise.
Remote code execution in TOTOLIK A3002RU V2.1.1 firmware results from a stack-based buffer overflow in the DNS configuration function that can be exploited by authenticated network users. Public exploit code exists for this vulnerability, and attackers with valid credentials can achieve full system compromise including code execution and data manipulation. No patch is currently available.
Buffer overflow in Totolink A3600R firmware version 5.9c.4959 allows authenticated remote attackers to execute arbitrary code through the setAppEasyWizardConfig function via a malformed apcliSsid parameter. Public exploit code exists for this vulnerability and no patch is currently available. Affected devices are at high risk given the lack of mitigation options and active exploitation potential.
Buffer overflow in Totolik NR1800X firmware allows authenticated remote attackers to achieve complete system compromise through malformed SSID parameters in the setWizardCfg POST handler. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to remote code execution. This vulnerability requires valid credentials but presents critical risk given the device's network exposure and lack of mitigation options.
Buffer overflow in Totolik LR350 firmware allows authenticated remote attackers to achieve full system compromise through malicious SSID parameters in the wizard configuration endpoint. Public exploit code is available for this vulnerability, and no patch has been released, leaving deployed devices at immediate risk. The flaw requires valid credentials but enables complete confidentiality, integrity, and availability violations with network-level access.
Stack-based buffer overflow in Totolink LR350 firmware (version 9.3.5u.6369_B20220309) allows authenticated remote attackers to achieve complete system compromise through manipulation of the ssid parameter in the WiFi configuration function. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to active exploitation. The vulnerability requires valid credentials but poses critical risk due to high-impact consequences including arbitrary code execution.
Unauthenticated remote attackers can exploit a buffer overflow in the WiFi configuration function of Totolink LR350 firmware version 9.3.5u.6369_B20220309 to achieve remote code execution with full system compromise. The vulnerability exists in the ssid parameter handler of /cgi-bin/cstecgi.cgi and requires only network access to trigger, with public exploit code already available. No patch is currently available for affected devices.
Buffer overflow in Totolink LR350 firmware allows authenticated remote attackers to achieve complete system compromise through a malformed SSID parameter in the WiFi guest configuration function. Public exploit code exists for this vulnerability, and no patch is currently available. An attacker with network access and valid credentials can execute arbitrary code with full system privileges.
Buffer overflow in TOTOLIK A3700R firmware version 9.1.2u.5822_B20200513 allows authenticated remote attackers to achieve complete system compromise through manipulation of the ssid parameter in the WiFi guest configuration function. Public exploit code exists for this vulnerability and no patch is currently available. An attacker with network access and valid credentials can execute arbitrary code with full system privileges.
TOTOLINK X5000R V9.1.0u.6118_B20201102 and V9.1.0u.6369_B20230113 contain a command insertion vulnerability in setting/setTracerouteCfg. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Path traversal in the Totolink A3002MU router's File Upload Handler (firmware 1.0.0-B20230403.1455) allows remote unauthenticated attackers to write files outside the intended upload directory by manipulating the 'filename' argument to /boafrm/formUploadFile. Publicly available exploit code exists, but there is no confirmed active exploitation (CISA KEV). The CVSS 4.0 score is 5.3 with low confidentiality, integrity, and availability impact, and the vector requires passive user interaction (UI:P), so exploitation is not fully unattended. Realistic risk depends on whether the upload interface is reachable from untrusted networks.