T6 Firmware
Monthly
Command injection in TOTOLINK T6 firmware 4.1.5cu.748 allows authenticated remote attackers to execute arbitrary commands via the ckeckKeepAlive function in the MQTT Packet Handler component (wireless.so). The vulnerability requires valid user credentials and network access but results only in low confidentiality, integrity, and availability impact. Publicly available exploit code exists, though the CVSS 2.1 score and EPSS 3.01% indicate low practical exploitation probability despite public disclosure.
Unauthenticated remote manipulation of the setTelnetCfg CGI function on TOTOLINK T6 routers allows any network-reachable attacker to enable the device's Telnet service by posting telnet_enabled=1 to /cgi-bin/cstecgi.cgi without credentials. Firmware version v4.1.5cu.748_B20211015 is confirmed affected via a public proof-of-concept and YouTube walkthrough, substantially lowering the skill bar for exploitation. No vendor-released patch has been identified at time of analysis; no public exploit identified at time of analysis in CISA KEV, though publicly available exploit code exists.
Command injection in TOTOLINK T6 router firmware 4.1.5cu.748 allows remote attackers to execute arbitrary OS commands by manipulating the 'ip' parameter of the clearPairCfg function in the /cgi-bin/cstecgi.cgi HTTP POST handler. Exploit code is publicly available, but no active exploitation has been confirmed.
Command injection in TOTOLINK T6 firmware version 4.1.5cu.748 allows authenticated remote attackers to execute arbitrary OS commands via the ipAddr parameter in a crafted request to /cgi-bin/cstecgi.cgi. The vulnerability resides in the delDevice function of the HTTP POST handler, and publicly available exploit code exists. Although the vendor-reported CVSS 4.0 score is low (2.1), weaponizing this flaw can lead to full router compromise, making it critical for affected devices.
Command injection in TOTOLINK T6 firmware 4.1.5cu.748 allows remote authenticated attackers with low privileges to execute arbitrary system commands via the ip parameter of the CloudSrvVersionCheck function in /cgi-bin/cstecgi.cgi. A public proof-of-concept exploit is available, and while EPSS indicates a moderate 1.64% exploitation probability (82nd percentile), no active exploitation has been confirmed by CISA KEV at this time.
Command injection in TOTOLINK T6 router firmware allows authenticated low-privilege remote attackers to execute arbitrary OS commands via a crafted HTTP POST request to the /cgi-bin/cstecgi.cgi endpoint. Public exploit code is available, increasing the risk of automated or opportunistic attacks, but no active exploitation is confirmed via CISA KEV. While the CNA-assigned CVSS 4.0 score is low (2.1), real-world impact may be total device compromise if the web server runs with elevated privileges, as is common in embedded routers.
Remote command injection in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 allows authenticated attackers with low privileges to execute arbitrary commands via the ip parameter in HTTP POST requests to /cgi-bin/cstecgi.cgi. Exploit code is publicly available, and EPSS indicates moderate exploitation likelihood, though no active KEV listing exists.
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.
Authentication bypass in TOTOLINK T6 router firmware 4.1.5cu.748_B20211015 allows adjacent network attackers to manipulate the authCode or goURL parameters to bypass authentication on the /formLoginAuth.htm endpoint. The vulnerability enables unauthorized access to administrative functions without credentials. Publicly available exploit code exists, but no active exploitation has been confirmed.
A vulnerability classified as problematic has been found in Totolink T6 4.1.9cu.5241_B20210923. 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 T6 4.1.9cu.5241_B20210923. 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 T6 V4.1.5cu.709_B20210518 is vulnerable to command injection via cstecgi.cgi. 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 T6 V4.1.5cu.709_B20210518 is vulnerable to Buffer Overflow via cstecgi.cgi. 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.
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is an execute arbitrary command in cstecgi.cgi. 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.
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is a hard coded password for root in /etc/shadow.sample. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the cloneMac parameter in the function FUN_0041621c. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_004137a4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc, week, sTime, eTime parameters in the function FUN_004133c4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the cloneMac parameter in the function FUN_0041af40. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the url parameter in the function FUN_00418540. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the command parameter in the function FUN_0041cc88. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_00412ef4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_0041880c. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_00413be4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the password parameter in the function FUN_00413f80. 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 T6 V5.9c.4085_B20190428 was discovered to contain a command injection vulnerability in the "Main" 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 command injection vulnerability in the function recvSlaveUpgstatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function meshSlaveUpdate of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function recv_mesh_info_sync of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function setUpgradeFW of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a crafted. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function isAssocPriDevice of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function meshSlaveDlfw of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a crafted. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function recvSlaveCloudCheckStatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function updateWifiInfo of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Command injection in TOTOLINK T6 firmware 4.1.5cu.748 allows authenticated remote attackers to execute arbitrary commands via the ckeckKeepAlive function in the MQTT Packet Handler component (wireless.so). The vulnerability requires valid user credentials and network access but results only in low confidentiality, integrity, and availability impact. Publicly available exploit code exists, though the CVSS 2.1 score and EPSS 3.01% indicate low practical exploitation probability despite public disclosure.
Unauthenticated remote manipulation of the setTelnetCfg CGI function on TOTOLINK T6 routers allows any network-reachable attacker to enable the device's Telnet service by posting telnet_enabled=1 to /cgi-bin/cstecgi.cgi without credentials. Firmware version v4.1.5cu.748_B20211015 is confirmed affected via a public proof-of-concept and YouTube walkthrough, substantially lowering the skill bar for exploitation. No vendor-released patch has been identified at time of analysis; no public exploit identified at time of analysis in CISA KEV, though publicly available exploit code exists.
Command injection in TOTOLINK T6 router firmware 4.1.5cu.748 allows remote attackers to execute arbitrary OS commands by manipulating the 'ip' parameter of the clearPairCfg function in the /cgi-bin/cstecgi.cgi HTTP POST handler. Exploit code is publicly available, but no active exploitation has been confirmed.
Command injection in TOTOLINK T6 firmware version 4.1.5cu.748 allows authenticated remote attackers to execute arbitrary OS commands via the ipAddr parameter in a crafted request to /cgi-bin/cstecgi.cgi. The vulnerability resides in the delDevice function of the HTTP POST handler, and publicly available exploit code exists. Although the vendor-reported CVSS 4.0 score is low (2.1), weaponizing this flaw can lead to full router compromise, making it critical for affected devices.
Command injection in TOTOLINK T6 firmware 4.1.5cu.748 allows remote authenticated attackers with low privileges to execute arbitrary system commands via the ip parameter of the CloudSrvVersionCheck function in /cgi-bin/cstecgi.cgi. A public proof-of-concept exploit is available, and while EPSS indicates a moderate 1.64% exploitation probability (82nd percentile), no active exploitation has been confirmed by CISA KEV at this time.
Command injection in TOTOLINK T6 router firmware allows authenticated low-privilege remote attackers to execute arbitrary OS commands via a crafted HTTP POST request to the /cgi-bin/cstecgi.cgi endpoint. Public exploit code is available, increasing the risk of automated or opportunistic attacks, but no active exploitation is confirmed via CISA KEV. While the CNA-assigned CVSS 4.0 score is low (2.1), real-world impact may be total device compromise if the web server runs with elevated privileges, as is common in embedded routers.
Remote command injection in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 allows authenticated attackers with low privileges to execute arbitrary commands via the ip parameter in HTTP POST requests to /cgi-bin/cstecgi.cgi. Exploit code is publicly available, and EPSS indicates moderate exploitation likelihood, though no active KEV listing exists.
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.
Authentication bypass in TOTOLINK T6 router firmware 4.1.5cu.748_B20211015 allows adjacent network attackers to manipulate the authCode or goURL parameters to bypass authentication on the /formLoginAuth.htm endpoint. The vulnerability enables unauthorized access to administrative functions without credentials. Publicly available exploit code exists, but no active exploitation has been confirmed.
A vulnerability classified as problematic has been found in Totolink T6 4.1.9cu.5241_B20210923. 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 T6 4.1.9cu.5241_B20210923. 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 T6 V4.1.5cu.709_B20210518 is vulnerable to command injection via cstecgi.cgi. 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 T6 V4.1.5cu.709_B20210518 is vulnerable to Buffer Overflow via cstecgi.cgi. 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.
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is an execute arbitrary command in cstecgi.cgi. 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.
In TOTOLINK T6 V4.1.5cu.709_B20210518, there is a hard coded password for root in /etc/shadow.sample. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the cloneMac parameter in the function FUN_0041621c. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_004137a4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc, week, sTime, eTime parameters in the function FUN_004133c4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the cloneMac parameter in the function FUN_0041af40. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the url parameter in the function FUN_00418540. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the command parameter in the function FUN_0041cc88. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_00412ef4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_0041880c. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the desc parameter in the function FUN_00413be4. 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 T6 V4.1.9cu.5179_B20201015 was discovered to contain a stack overflow via the password parameter in the function FUN_00413f80. 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 T6 V5.9c.4085_B20190428 was discovered to contain a command injection vulnerability in the "Main" 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 command injection vulnerability in the function recvSlaveUpgstatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function meshSlaveUpdate of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function recv_mesh_info_sync of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function setUpgradeFW of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a crafted. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function isAssocPriDevice of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function meshSlaveDlfw of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a crafted. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function recvSlaveCloudCheckStatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A command injection vulnerability in the function updateWifiInfo of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.