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10 vulnerabilities found for EX1200L by Totolink
CVE-2026-44089 (GCVE-0-2026-44089)
Vulnerability from nvd – Published: 2026-06-23 12:08 – Updated: 2026-06-23 13:32
VLAI
Title
Buffer Overflow in Totolink EX1200L router
Summary
Totolink EX1200L router is vulnerable to Buffer Overflow in the login functionality in cgi-bin/cstecgi.cgi endpoint. This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.
Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-44089 | third-party-advisory |
| https://www.totolink.net/home/menu/detail/menu_li… | product |
Impacted products
Date Public
2026-06-23 09:07
Credits
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CVE-2026-44089 (GCVE-0-2026-44089)
Vulnerability from cvelistv5 – Published: 2026-06-23 12:08 – Updated: 2026-06-23 13:32
VLAI
Title
Buffer Overflow in Totolink EX1200L router
Summary
Totolink EX1200L router is vulnerable to Buffer Overflow in the login functionality in cgi-bin/cstecgi.cgi endpoint. This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.
Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/06/CVE-2026-44089 | third-party-advisory |
| https://www.totolink.net/home/menu/detail/menu_li… | product |
Impacted products
Date Public
2026-06-23 09:07
Credits
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VAR-202312-1261
Vulnerability from variot - Updated: 2025-07-10 23:04TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi setOpModeCfg interface. TOTOLINK of ex1200l The firmware has OS A command injection vulnerability exists.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier, mainly used to expand the Wi-Fi coverage of home or office environments and solve the problem of weak signals or dead spots
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VAR-202312-0940
Vulnerability from variot - Updated: 2025-07-10 23:01TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi UploadFirmwareFile interface. TOTOLINK of ex1200l Firmware has an unrestricted upload of dangerous file types vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier, mainly used to expand the Wi-Fi coverage of home or office environments, and solve the problem of weak signals or dead spots.
TOTOLINK EX1200L has a command execution vulnerability, which is caused by the UploadFirmwareFil function interface of cstecgi.cgi failing to properly filter special characters and commands in constructed commands
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VAR-202312-1593
Vulnerability from variot - Updated: 2025-07-10 23:00TOTOLINK EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution on the cstecgi.cgi NTPSyncWithHost interface. TOTOLINK of ex1200l The firmware has OS A command injection vulnerability exists.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier, mainly used to expand the Wi-Fi coverage of home or office environments and solve the problem of weak signals or dead spots
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VAR-202408-0176
Vulnerability from variot - Updated: 2025-07-09 23:22A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. Affected by this issue is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-273260. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of ex1200l Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier launched by China Jiong Electronics, mainly used to expand Wi-Fi coverage. No detailed vulnerability details are currently provided
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Vulnerability from variot - Updated: 2025-07-09 23:21A vulnerability was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. It has been rated as critical. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273257 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of ex1200l Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier launched by China Jiong Electronics, mainly used to expand Wi-Fi coverage. No detailed vulnerability details are currently provided
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VAR-202408-0215
Vulnerability from variot - Updated: 2025-07-09 23:07A vulnerability, which was classified as critical, was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument week/sTime/eTime leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273261 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of ex1200l Firmware has a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a dual-band wireless signal amplifier launched by China Jiong Electronics, mainly used to expand Wi-Fi coverage. No detailed vulnerability details are currently provided
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VAR-202408-0553
Vulnerability from variot - Updated: 2025-06-21 23:35A vulnerability, which was classified as critical, was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. Affected is the function setDefResponse of the file /www/cgi-bin/cstecgi.cgi. The manipulation of the argument IpAddress leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of ex1200l An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a wireless repeater from China's TOTOLINK Electronics. An attacker can exploit this vulnerability to corrupt memory and possibly cause the browser to crash
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Vulnerability from variot - Updated: 2025-06-21 23:28A vulnerability has been found in TOTOLINK EX1200L 9.3.5u.6146_B20201023 and classified as critical. Affected by this vulnerability is the function setLanguageCfg of the file /www/cgi-bin/cstecgi.cgi. The manipulation of the argument langType leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of ex1200l An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK EX1200L is a wireless repeater from China's TOTOLINK Electronics. No detailed vulnerability details are currently provided
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