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
- 7.0 High severity
X2000R: Use of Default Credentials
A security flaw has been discovered in TOTOLINK X2000R up to 2.0.0. The affected element is an unknown function of the file /etc/shadow.sample of the component Administrative Interface. The manipulation results in use of default credentials. Attacking locally
- 9.8 Critical severity
T10: Improper Authentication
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /formLoginAuth.htm. The manipulation of the argument authCode with the input 1 leads to improper authentication. The attack can be initiated remo
- 9.8 Critical severity
A720R: Buffer Copy without Checking Size of Input
A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509. This issue affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument desc results in buffer overflow. The attack is possible to b
- 9.8 Critical severity
A3002r Firmware: Improper Neutralization of Special Elements used in a Command
TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac parameter in the formMapDel endpoint.
- 7.5 High severity
A3002r Firmware: Uncontrolled Resource Consumption
TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the fw_ip parameter at /boafrm/formPortFw. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
- 7.5 High severity
A3002r Firmware: Uncontrolled Resource Consumption
TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the hostname parameter at /boafrm/formMapDelDevice. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
- 7.5 High severity
A3002r Firmware: Uncontrolled Resource Consumption
TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
- 8.8 High severity
N350R: Improper Neutralization of Special Elements in Output Used by a Downstream Component
A vulnerability has been found in TOTOLINK N350R 1.2.3-B20130826. This vulnerability affects unknown code of the file /boafrm/formSysCmd. The manipulation leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the p
- 9.8 Critical severity
N600r Firmware: Improper Neutralization of Special Elements used in an OS Command
TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin parameter in the setWiFiWpsConfig function.
- 7.5 High severity
X15: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been rated as critical. Affected by this issue is some unknown functionality of the file /boafrm/formRoute of the component HTTP POST Request Handler. The manipulation of the argument submi
- 7.5 High severity
X15: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formMultiAPVLAN of the component HTTP POST Request Handler. The manipulation of the
- 9.8 Critical severity
X15: Improper Neutralization of Special Elements used in a Command
A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been classified as critical. Affected is an unknown function of the file /boafrm/formMapDelDevice of the component HTTP POST Request Handler. The manipulation of the argument macstr leads t
- 7.5 High severity
X15: Out-of-bounds Write
A vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105 and classified as critical. This issue affects some unknown processing of the file /boafrm/formMapDel of the component HTTP POST Request Handler. The manipulation of the argument devicemac1 leads t
- 7.5 High severity
X15: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability has been found in TOTOLINK X15 1.0.0-B20230714.1105 and classified as critical. This vulnerability affects unknown code of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr/url/vpnP
- 7.2 High severity
N600R: Incorrect Privilege Assignment
A vulnerability, which was classified as critical, was found in TOTOLINK N600R and X2000R 1.0.0.1. This affects an unknown part of the file vsftpd.conf of the component FTP Service. The manipulation leads to least privilege violation. It is possible to initiat
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748_B20211015. This vulnerability affects the function tcpcheck_net of the file /router/meshSlaveDlfw of the component MQTT Packet Handler. The manipulation of the argument serverIp leads
- 8.8 High severity
A702R: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521. It has been declared as critical. This vulnerability affects unknown code of the file /boafrm/formWlanMultipleAP of the component HTTP POST Request Handler. The manipulation of the argument subm
- 8.8 High severity
A702R: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521. It has been classified as critical. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to
- 8.8 High severity
A702R: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical. Affected by this issue is some unknown functionality of the file /boafrm/formOneKeyAccessButton of the component HTTP POST Request Handler. The manipulation of the arg
- 8.8 High severity
A702R: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20230721.1521 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formIpQoS of the component HTTP POST Request Handler. The manipulation of the argum
- 7.5 High severity
A702R: Buffer Copy without Checking Size of Input
A vulnerability, which was classified as critical, was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected is an unknown function of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr leads to bu
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748. This vulnerability affects the function ckeckKeepAlive of the file wireless.so of the component MQTT Packet Handler. The manipulation leads to command injection. The attack can be ini
- 9.8 Critical severity
A7100ru Firmware: Incorrect Privilege Assignment
In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized access to system files, privilege escalation, or use of the compromised server as a pivot point for internal networ
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. Affected is the function updateWifiInfo of the component MQTT Service. The manipulation of the argument serverIp leads to buffer overflow. It is possible to laun
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability, which was classified as critical, has been found in TOTOLINK T6 4.1.5cu.748_B20211015. This issue affects the function recvSlaveUpgstatus of the component MQTT Service. The manipulation of the argument s leads to buffer overflow. The attack ma
- 9.8 Critical severity
T6: Improper Authentication
A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument telne
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this issue is the function recvSlaveStaInfo of the component MQTT Service. The manipulation of the argument dest leads to buffer overflow. The attack may be
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015. Affected by this issue is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation o
- 9.8 Critical severity
A3300r Firmware: Improper Neutralization of Special Elements used in a Command
Totolink A3300R V17.0.0cu.596_B20250515 was found to contain a command injection vulnerability in the sub_4197C0 function via the mac and desc parameters. This vulnerability allows unauthenticated attackers to execute arbitrary commands via a crafted request.
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
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 c
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
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
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
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
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
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 argu
- 8.8 High severity
T6: Improper Neutralization of Special Elements in Output Used by a Downstream Component
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
- 8.8 High severity
T6: Improper Restriction of Operations within the Bounds of a Memory Buffer
A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the
- 8.8 High severity
N300rb Firmware: Missing Authentication for Critical Functionality
A hidden remote support feature protected by a static secret in TOTOLINK N300RB firmware version 8.54 allows an authenticated attacker to execute arbitrary OS commands with root privileges.
- 8.8 High severity
N200RE: Improper Neutralization of Special Elements used in a Command
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 lead
- 8.8 High severity
A3002RU: Improper Restriction of Operations within the Bounds of a Memory Buffer
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
- 8.8 High severity
A702R: Improper Restriction of Operations within the Bounds of a Memory Buffer
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 argume
- 8.8 High severity
A3002RU: Improper Restriction of Operations within the Bounds of a Memory Buffer
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 t