TOTOLINK

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 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).

X5000R Firmware versions up to 9.1.0cu.2415_b20250515 is affected by uncontrolled resource consumption (CVSS 7.5).

X6000R Firmware versions up to 9.4.0cu.1498_b20250826 is affected by os command injection (CVSS 8.8).

Argument injection in TOTOLINK X5000R router v9.1.0cu via setDiagnosisCfg handler allows unauthenticated remote code execution. EPSS 2.0% with PoC available.

X5000R Firmware versions up to 9.1.0cu.2415_b20250515 is affected by os command injection (CVSS 8.0).

A950Rg Firmware versions up to 4.1.2cu.5204_b20210112 is affected by classic buffer overflow (CVSS 6.5).

TOTOLINK A950RG has a third buffer overflow in setRadvdCfg providing yet another RCE vector through the router's IPv6 configuration interface.

TOTOLINK A950RG has a stack-based buffer overflow in a second endpoint, providing an additional RCE vector through the router's CGI interface.

TOTOLINK A950RG router firmware has a buffer overflow in setUrlFilterRules that allows remote attackers to execute code through the router's management interface.

TOTOLINK N300RT wireless router firmware versions prior to V3.4.0-B20250430 (discovered in V2.1.8-B20201030.1539) contain an OS command injection vulnerability in the Boa formWsc handling functionality. An unauthenticated attacker can send specially crafted requests to trigger command execution via the targetAPSsid request parameter.

A command injection vulnerability exists in the TOTOLINK A950RG Router firmware V5.9c.4592_B20191022_ALL within the `system.so` binary. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A buffer overflow vulnerability exists in the TOTOLINK A950RG Router firmware V5.9c.4592_B20191022_ALL within the `global.so` binary. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A stack buffer overflow vulnerability exists in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) Router firmware within the cstecgi.cgi binary (setDefResponse. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

An unauthenticated command injection vulnerability exists in the ToToLink LR1200GB Router firmware V9.1.0u.6619_B20230130 within the cstecgi.cgi binary (sub_41EC68 function). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A local stack-based buffer overflow vulnerability exists in the infostat.cgi and cstecgi.cgi binaries of ToToLink routers (A720R V4.1.5cu.614_B20230630, LR1200GB V9.1.0u.6619_B20230130, and NR1800X. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). Rated medium severity (CVSS 5.1), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A stack buffer overflow vulnerability exists in the ToToLink LR1200GB (V9.1.0u.6619_B20230130) and NR1800X (V9.1.0u.6681_B20230703) Router firmware within the cstecgi.cgi binary (sub_42F32C. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary, specifically in the sub_40BFA4 function that handles network interface. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 10.3%.

A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the cloudupdate_check binary, specifically in the sub_402414 function that handles cloud. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLink A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow in the addEffect parameter of the urldecode function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLink A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow in the ssid parameter of the urldecode function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Command injection in TOTOLINK X18 via mac parameter. EPSS 3.4%. PoC available.

Command injection in TOTOLINK X18 via agentName in setEasyMeshAgentCfg. EPSS 2.7%. PoC available.

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in TOTOLINK X6000R allows OS Command Injection.4.0cu.1458_B20250708. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denial of Service. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Improper Input Validation vulnerability in TOTOLINK X6000R allows Command Injection, File Manipulation.4.0cu.1360_B20241207. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in TOTOLINK X6000R allows OS Command Injection.4.0cu.1360_B20241207. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Improper Input Validation vulnerability in TOTOLINK X6000R allows Flooding.4.0cu.1360_B20241207. Rated high severity (CVSS 7.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

TOTOLINK X6000R router firmware V9.4.0cu.1360_B20241207 contains an unauthenticated command injection in the sub_417D74 function via the file_name parameter. Remote attackers can execute arbitrary commands on the router without authentication through crafted HTTP requests.

An issue in TOTOLINK Wi-Fi 6 Router Series Device X2000R-Gh-V2.0.0 allows a remote attacker to execute arbitrary code via the default password. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was determined in TOTOLINK N600R 4.3.0cu.7866_B20220506. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was found in TOTOLINK X5000R 9.1.0cu.2415_B20250515. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was determined in TOTOLINK A702R 4.0.0-B20211108.1423. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was found in TOTOLINK A702R 4.0.0-B20211108.1423. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A flaw has been found in TOTOLINK A702R 4.0.0-B20211108.1423. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was detected in TOTOLINK A702R 4.0.0-B20211108.1423. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A security flaw has been discovered in TOTOLINK X2000R up to 2.0.0. Rated low severity (CVSS 2.0). Public exploit code available and no vendor patch available.

A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509.cgi. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoint. 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.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain an command injection vulnerability via the component bupload.html. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain multiple OS command injection vulnerabilities via the macstr, bandstr, and clientoff parameters at /boafrm/formMapDelDevice. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the fw_ip parameter at /boafrm/formPortFw. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the hostname parameter at /boafrm/formMapDelDevice. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain an eval injection vulnerability via the eval() function. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain insecure credentials for the telnet service and root account. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability was found in TOTOLINK N350R 1.2.3-B20130826. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability has been found in TOTOLINK N350R 1.2.3-B20130826. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

In TOTOLINK EX1200T firmware 4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

In TOTOLINK A7000R firmware 9.1.0u.6115_B20201022, an attacker can bypass login by sending a specific request through formLoginAuth.htm. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin parameter in the setWiFiWpsConfig function. 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.

A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748. Affected by this vulnerability is the function clearPairCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical has been found in TOTOLINK T6 4.1.5cu.748. Affected is the function delDevice of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ipAddr leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK T6 4.1.5cu.748. It has been rated as critical. This issue affects the function CloudSrvVersionCheck of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been declared as critical. This vulnerability affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument command leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been classified as critical. This affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

CVE-2025-7460 is a critical buffer overflow vulnerability in the setWiFiAclRules function of TOTOLINK T6 routers (version 4.1.5cu.748_B20211015) that allows authenticated remote attackers to achieve code execution through malformed MAC address parameters in HTTP POST requests. The vulnerability has been publicly disclosed with proof-of-concept availability and poses immediate risk to deployed TOTOLINK T6 devices; exploitation requires valid credentials but no user interaction.

CVE-2025-52089 is a critical remote code execution vulnerability in TOTOLINK N300RB firmware version 8.54, where a hidden remote support feature protected only by a static secret allows authenticated attackers to execute arbitrary OS commands with root privileges. While the CVSS 3.1 score of 8.8 reflects high severity, the attack vector is adjacent network (AV:A), limiting widespread exploitation to network-adjacent attackers. The vulnerability has not been publicly confirmed as actively exploited or included in CISA's Known Exploited Vulnerabilities (KEV) catalog, but the simplistic authentication mechanism (static secret) and hidden feature design suggest high exploitability once discovered.

A vulnerability, which was classified as critical, has been found in TOTOLINK N200RE 9.3.5u.6095_B20200916/9.3.5u.6139_B20201216. Affected by this issue is the function sub_41A0F8 of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Hostname leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as critical, was found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an unknown function of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected by this vulnerability is an unknown functionality of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical has been found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an unknown function of the file /boafrm/formWlSiteSurvey of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. This affects the function Form_Login of the file /formLoginAuth.htm. The manipulation of the argument authCode/goURL leads to missing authentication. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical was found in TOTOLINK A702R up to 4.0.0-B20230721.1521. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlSiteSurvey of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical has been found in TOTOLINK X15 up to 1.0.0-B20230714.1105. Affected is an unknown function of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A buffer overflow vulnerability in A vulnerability (CVSS 8.8). Risk factors: public PoC available.

A vulnerability classified as critical has been found in TOTOLINK CA300-PoE 6.2c.884. This affects the function QuickSetting of the file ap.so. The manipulation of the argument hour/minute leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been rated as critical. Affected by this issue is the function setUpgradeUboot of the file upgrade.so. The manipulation of the argument FileName leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been declared as critical. Affected by this vulnerability is the function setUpgradeFW of the file upgrade.so. The manipulation of the argument FileName leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been classified as critical. Affected is the function SetWLanApcliSettings of the file wps.so. The manipulation of the argument PIN leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A buffer overflow vulnerability in A vulnerability classified as critical (CVSS 8.8). Risk factors: public PoC available.

CVE-2025-6487 is a critical stack-based buffer overflow vulnerability in TOTOLINK A3002R router firmware version 1.1.1-B20200824.0128, affecting the formRoute function's subnet parameter processing. An authenticated remote attacker can exploit this to achieve arbitrary code execution with high confidentiality, integrity, and availability impact. The vulnerability has public exploit disclosure and should be treated as actively exploitable.

CVE-2025-6486 is a critical stack-based buffer overflow vulnerability in TOTOLINK A3002R router firmware version 1.1.1-B20200824.0128, affecting the formWlanMultipleAP function. An authenticated remote attacker can exploit this via manipulation of the 'submit-url' parameter to achieve code execution with high impact on confidentiality, integrity, and availability. Public exploit code is available, increasing real-world exploitation risk.

A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128. It has been classified as critical. This affects the function formWlSiteSurvey of the file /boafrm/formWlSiteSurvey. The manipulation of the argument wlanif leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

CVE-2025-6402 is a critical buffer overflow vulnerability in TOTOLINK X15 firmware version 1.0.0-B20230714.1105 affecting the IPv6 setup HTTP POST handler. An authenticated remote attacker can exploit improper input validation on the 'submit-url' parameter to achieve complete system compromise (confidentiality, integrity, and availability). Public exploit code exists for this vulnerability, increasing real-world exploitation risk.

A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been classified as problematic. This affects an unknown part of the file /boafrm/formFilter of the component HTTP POST Message Handler. The manipulation of the argument url leads to denial of service. The exploit has been disclosed to the public and may be used.

CVE-2025-6400 is a critical buffer overflow vulnerability in TOTOLINK N300RH router firmware version 6.1c.1390_B20191101, exploitable via HTTP POST requests to the /boafrm/formPortFw endpoint through manipulation of the service_type parameter. An authenticated attacker can remotely trigger this vulnerability to achieve complete system compromise (confidentiality, integrity, and availability). Public exploit code is available and the vulnerability meets criteria for active exploitation risk due to disclosed POC and remote exploitability from an authenticated state.

CVE-2025-6399 is a critical buffer overflow vulnerability in TOTOLINK X15 router (firmware version 1.0.0-B20230714.1105) affecting the HTTP POST request handler for the /boafrm/formIPv6Addr endpoint. An authenticated attacker can exploit the improper handling of the 'submit-url' parameter to trigger a buffer overflow, achieving remote code execution with full system compromise (confidentiality, integrity, and availability). A public exploit has been disclosed and the vulnerability is likely to see active exploitation given its criticality and ease of exploitation.

CVE-2025-6393 is a critical buffer overflow vulnerability in the HTTP POST request handler of TOTOLINK routers affecting models A702R, A3002R, A3002RU, and EX1200T across multiple firmware versions. An authenticated attacker can exploit this vulnerability by manipulating the 'submit-url' parameter in requests to /boafrm/formIPv6Addr to achieve remote code execution with full system compromise (confidentiality, integrity, and availability impact). The exploit has been publicly disclosed and may be actively exploited in the wild.