EUVD-2026-21706CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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8DescriptionNVD
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setAppCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enable can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used.
AnalysisAI
OS command injection in Totolink A7100RU router firmware (version 7.4cu.2313_b20191024) allows unauthenticated remote attackers to execute arbitrary system commands via the 'enable' parameter in the setAppCfg function of /cgi-bin/cstecgi.cgi. CVSS 9.8 critical severity with network attack vector, low complexity, and no authentication required. …
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RemediationAI
Within 24 hours: Identify and inventory all Totolik A7100RU devices in production and take them offline or isolate to a quarantined network segment; notify affected business units. Within 7 days: Contact Totolik support to confirm patch availability status and request emergency firmware release timeline; implement network segmentation to restrict router access. …
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