ET WEB_SPECIFIC_APPS TP-Link Wan6to4TunnelCfgRpm.htm dnsserver1 Parameter Buffer Overflow Attempt (CVE-2026-9105)
Sourceet/open
Fileemerging-web_specific_apps.rules
CreatedAugust 5, 2026
UpdatedAugust 5, 2026
Classificationattempted-admin
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS TP-Link Wan6to4TunnelCfgRpm.htm dnsserver1 Parameter Buffer Overflow Attempt (CVE-2026-9105)"; flow:established,to_server ; http.method; content:"POST"; http.uri; content:"/userRpm/Wan6to4TunnelCfgRpm.htm"; fast_pattern; http.request_body; content:"dnsserver"; pcre:"/^\d\x3d[^&]{27,}(?:&|$)/R" ; reference:url,lavender-bicycle-a5a.notion.site/TP-Link-TL-WR841ND-Wan6to4TunnelCfgRpm-24d53a41781f80c59ea7dd85fe2c2142 ; reference:cve,2026-9105 ; classtype:attempted-admin; sid:2071392; rev:2; metadata:affected_product TP_LINK, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_08_05, cve CVE_2026_9105, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_08_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
References
Metadata
affected productTP_LINK
attack targetNetworking_Equipment
tls stateplaintext
created at2026_08_05
deploymentInternal
performance impactLow
confidenceHigh
signature severityMajor
tagExploit
updated at2026_08_05
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application
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