EUVD-2026-26941CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
AnalysisAI
Buffer overflow in Totolink N300RH router firmware 3.2.4-B20220812 allows authenticated remote attackers to achieve complete device compromise via crafted DNS parameter in WAN configuration requests. The vulnerability exists in the setWanConfig function within /cgi-bin/cstecgi.cgi POST handler, exploitable by manipulating the priDns argument. …
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RemediationAI
Within 24 hours: Inventory all Totolik N300RH devices running firmware 3.2.4-B20220812 and restrict administrative access to trusted networks only. Within 7 days: Contact Totolink support to confirm patch availability timeline and interim firmware versions; disable remote administration features if business-critical. …
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