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TOTOLINK

Vendor security scorecard – 160 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 1664
160
CVEs
9
Critical
109
High
0
KEV
139
PoC
118
Unpatched C/H
0.0%
Patch Rate
1.0%
Avg EPSS

Severity Breakdown

CRITICAL
9
HIGH
109
MEDIUM
15
LOW
27

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2026-79911 Stack-based buffer overflow in the TOTOLINK N600R router (firmware 4.3.0cu.7647_B20210106) lets remote attackers corrupt memory by supplying an oversized Hostname argument to the setSystemConfig function in /cgi-bin/cstecgi.cgi, potentially enabling arbitrary code execution on the device. Publicly available exploit code exists (disclosed via VulDB and a GitHub write-up), though the flaw is not listed in CISA KEV. VulDB scores it CVSS 4.0 9.3 (Critical), reflecting high confidentiality, integrity, and availability impact. CRITICAL 9.3 0.6% 67
PoC No patch
CVE-2026-9436 OS command injection in Totolink A8000RU router firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary operating system commands by manipulating the 'enable' argument passed to the setL2tpServerCfg function in /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (published on GitHub), though EPSS probability remains modest at 0.94% (76th percentile), and the issue is not currently listed in CISA KEV. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5850 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). HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5851 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5852 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5853 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5976 OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via crafted sambaEnabled parameter in setStorageCfg function of /cgi-bin/cstecgi.cgi CGI handler. Publicly available exploit code exists. Network-reachable attack vector requires no user interaction, enabling full system compromise of affected routers. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5975 OS command injection in Totolink A7100RU router firmware version 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the wanIdx parameter in the setDmzCfg function within /cgi-bin/cstecgi.cgi. CVSS 8.9 (Critical) with attack complexity low, no privileges required, and no user interaction. Publicly available exploit code exists. Exploitation enables complete compromise of device confidentiality, integrity, and availability with total technical impact. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5977 Remote OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiBasicCfg function of /cgi-bin/cstecgi.cgi. This vulnerability enables complete device compromise with high impact to confidentiality, integrity, and availability. Publicly available exploit code exists. No CISA KEV listing identified at time of analysis. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5978 OS command injection in Totolink A7100RU router firmware 7.4cu.2313_b20191024 allows unauthenticated remote attackers to execute arbitrary system commands via the 'mode' parameter in the setWiFiAclRules function (/cgi-bin/cstecgi.cgi). Publicly available exploit code exists. Attackers can achieve complete device compromise with high impact to confidentiality, integrity, and availability of the router. No authentication required for exploitation (CVSS PR:N). HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5993 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5994 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5995 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5996 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. HIGH 8.9 0.9% 65
PoC No patch
CVE-2026-5997 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. HIGH 8.9 0.9% 65
PoC No patch

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