TOTOLINK vulnerabilities
We track 806 vulnerabilities in TOTOLINK products across 60+ products. 806 are rated high or critical, and none are known to be exploited. The most recent was published on November 7, 2026.
Latest TOTOLINK vulnerabilities
- 8.8 High severity
A3600R: Buffer Copy without Checking Size of Input
A vulnerability was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102 and classified as critical. This issue affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument comment leads to buffer overflow. The attack may be
- 8.8 High severity
A3600R: Improper Neutralization of Special Elements used in an OS Command
A vulnerability has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102 and classified as critical. This vulnerability affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ipDoamin leads to os command injecti
- 8.8 High severity
A3600R: Improper Neutralization of Special Elements used in a Command
A vulnerability, which was classified as critical, was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. This affects the function setdeviceName of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument deviceMac/deviceName leads to buffer overflow. It
- 8.8 High severity
A3600R: Buffer Copy without Checking Size of Input
A vulnerability, which was classified as critical, has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. Affected by this issue is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password/http_host leads to buffer
- 8.8 High severity
A3600R: Buffer Copy without Checking Size of Input
A vulnerability classified as critical was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. Affected by this vulnerability is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to b
- 8.8 High severity
A3600R: Improper Neutralization of Special Elements used in an OS Command
A vulnerability classified as critical has been found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. Affected is the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument hostTime leads to os command injection. It is possible
- 8.8 High severity
A3000RU: Use of Hard-coded Credentials
A vulnerability was found in TOTOLINK A3000RU 5.9c.5185. It has been rated as problematic. This issue affects some unknown processing of the file /web_cste/cgi-bin/product.ini. The manipulation leads to use of hard-coded password. The exploit has been disclose
- 8.8 High severity
A3700R: Improper Neutralization of Special Elements used in a Command
A vulnerability classified as critical has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513. Affected is the function setWanCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument hostName leads to command injection. It is possible to launch
- 8.8 High severity
A3600R: Use of Hard-coded Password
A vulnerability was found in TOTOLINK A3600R 4.1.2cu.5182_B20201102. It has been rated as critical. This issue affects some unknown processing of the file /web_cste/cgi-bin/product.ini of the component Telnet Service. The manipulation leads to use of hard-code
- 8.8 High severity
A3100R: Improper Neutralization of Special Elements used in a Command
A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been declared as critical. This vulnerability affects the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the arg
- 8.8 High severity
A3100R: Buffer Copy without Checking Size of Input
A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been classified as critical. This affects the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer ov
- 7.5 High severity
A3700R: Exposure of Sensitive Information to an Unauthorized Actor
A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as problematic. Affected by this issue is some unknown functionality of the file /cgi-bin/ExportSettings.sh of the component apmib Configuration Handler. The manipulation leads t
- 7.5 High severity
A3700R: Missing Authentication for Critical Functionality
A vulnerability, which was classified as problematic, was found in TOTOLINK A3700R 9.1.2u.5822_B20200513. Affected is an unknown function of the file /wizard.html of the component Password Reset Handler. The manipulation leads to improper access controls. It i
- 8.8 High severity
a6000r_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK A6000R V1.0.1-B20201211.2000 was discovered to contain a command injection vulnerability via the ifname parameter in the get_apcli_conn_info function.
- 9.8 Critical severity
a6000r_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK A6000R V1.0.1-B20201211.2000 was discovered to contain a command injection vulnerability via the ifname parameter in the apcli_wps_gen_pincode function.
- 8.0 High severity
a6000r_firmware: Improper Neutralization of Special Elements used in an OS Command
TOTOLINK A6000R V1.0.1-B20201211.2000 was discovered to contain a command injection vulnerability via the ifname parameter in the apcli_do_enr_pbc_wps function.
- 9.8 Critical severity
a6000r_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK A6000R V1.0.1-B20201211.2000 was discovered to contain a command injection vulnerability via the ifname parameter in the apcli_cancel_wps function.
- 8.8 High severity
a6000r_firmware: Improper Neutralization of Special Elements used in an OS Command
A command injection issue in TOTOLINK A6000R V1.0.1-B20201211.2000 firmware allows a remote attacker to execute arbitrary code via the iface parameter in the vif_enable function.
- 7.5 High severity
a3100r: Buffer Copy without Checking Size of Input
TOTOLINK AC1200 Wireless Dual Band Gigabit Router firmware A3100R V4.1.2cu.5247_B20211129, in the cgi function `setNoticeCfg` of the file `/lib/cste_modules/system.so`, the length of the user input string `NoticeUrl` is not checked. This can lead to a buffer o
- 9.8 Critical severity
cp300\+: Use of Hard-coded Credentials
TOTOLINK CP300 V2.0.4-B20201102 was discovered to contain a hardcoded password vulnerability in /etc/shadow.sample, which allows attackers to log in as root.
- 8.8 High severity
cp900l_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK CP900L v4.1.5cu.798_B20221228 weas discovered to contain a command injection vulnerability in the NTPSyncWithHost function via the hostTime parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
- 9.8 Critical severity
cp900: Use of Hard-coded Credentials
TOTOLINK CP900L v4.1.5cu.798_B20221228 was discovered to contain a hardcoded password for telnet in /web_cste/cgi-bin/product.ini, which allows attackers to log in as root.
- 8.8 High severity
cp900_l: Use of Hard-coded Password
TOTOLINK CP900L v4.1.5cu.798_B20221228 was discovered to contain a hardcoded password vulnerability in /etc/shadow.sample, which allows attackers to log in as root.
- 8.0 High severity
x5000r_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain a command injection vulnerability via the 'password' parameter in the setSSServer function.
- 9.8 Critical severity
x5000r: Improper Neutralization of Special Elements used in a Command
TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain a command injection vulnerability via the 'port' parameter in the setSSServer function at /cgi-bin/cstecgi.cgi.
- 8.8 High severity
x5000r: Improper Control of Generation of Code
TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain an authenticated remote command execution (RCE) vulnerability via the "ipsecL2tpEnable" parameter in the "cstecgi.cgi" binary.
- 8.8 High severity
x5000r_firmware: Improper Neutralization of Special Elements used in an OS Command
TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain an authenticated remote command execution (RCE) vulnerability via the "mru" parameter in the "cstecgi.cgi" binary.
- 8.8 High severity
x5000r_firmware: Improper Control of Generation of Code
TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain an authenticated remote command execution (RCE) vulnerability via the "ipsecPsk" parameter in the "cstecgi.cgi" binary.
- 8.6 High severity
cp450_firmware: Use of Hard-coded Credentials
TOTOLINK CP450 V4.1.0cu.747_B20191224 was discovered to contain a vulnerability in the SetTelnetCfg function, which allows attackers to log in through telnet.
- 8.8 High severity
cp450_firmware: Use of Hard-coded Password
TOTOLINK CP450 v4.1.0cu.747_B20191224 was discovered to contain a hardcoded password vulnerability in /etc/shadow.sample, which allows attackers to log in as root.
- 7.3 High severity
outdoor_cpe_cp450: Improper Neutralization of Special Elements used in an OS Command
TOTOLINK outdoor CPE CP450 v4.1.0cu.747_B20191224 was discovered to contain a command injection vulnerability in the CloudACMunualUpdate function via the FileName parameter.
- 9.8 Critical severity
cp450_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK outdoor CPE CP450 v4.1.0cu.747_B20191224 was discovered to contain a command injection vulnerability in the setUpgradeFW function via the FileName parameter.
- 8.8 High severity
a3002ru-v3_firmware: Buffer Copy without Checking Size of Input
Totolink AC1200 Wireless Dual Band Gigabit Router A3002RU_V3 Firmware V3.0.0-B20230809.1615 is vulnerable to Buffer Overflow. The "boa" program allows attackers to modify the value of the "vwlan_idx" field via "formMultiAP". This can lead to a stack overflow t
- 9.8 Critical severity
ex1800t_firmware: Improper Authorization
TOTOLINK EX1800T V9.1.0cu.2112_B20220316 has a vulnerability in the apcliEncrypType parameter that allows unauthorized execution of arbitrary commands, allowing an attacker to obtain device administrator privileges.
- 7.5 High severity
A3002R_V4_Firmware: Buffer Copy without Checking Size of Input
Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow.
- 8.0 High severity
ex200_firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the langType parameter in the setLanguageCfg function.
- 8.8 High severity
ex200_firmware: Failure to Sanitize Special Elements into a Different Plane
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the FileName parameter in the setUpgradeFW function.
- 8.8 High severity
ex200_firmware: Improper Handling of Parameters
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the webWlanIdx parameter in the setWebWlanIdx function.
- 9.8 Critical severity
ex200_firmware: Improper Control of Generation of Code
TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution (RCE) vulnerability via the hostTime parameter in the NTPSyncWithHost function.
- 8.0 High severity
a3300r_firmware: Improper Neutralization of Special Elements used in an OS Command
TOTOLINK A3300R V17.0.0cu.557_B20221024 was discovered to contain an unauthenticated remote command execution (RCE) vulnerability via multiple parameters in the "setOpModeCfg" function. This security issue allows an attacker to take complete control of the dev