ET EXPLOIT Zyxel runCommandInShell Telnet Service Command Injection Attempt (CVE-2024-40891) M2

7.0.35.0SID: 2072649Rev: 1Enabled3 views
Sourceet/open
Fileemerging-exploit.rules
CreatedNovember 6, 2026
UpdatedNovember 6, 2026
Classificationattempted-admin
alert tcp any any -> $HOME_NET 23 (msg:"ET EXPLOIT Zyxel runCommandInShell Telnet Service Command Injection Attempt (CVE-2024-40891) M2"; reference:cve,2024-40891; reference:url,vulncheck.com/blog/zyxel-telnet-vulns; classtype:attempted-admin; sid:2072649; rev:1; metadata:affected_product Zyxel, attack_target Server, tls_state TLSDecrypt, created_at 2026_11_06, cve CVE_2024_40891, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, updated_at 2026_11_06, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)
Detection details are hidden.

References

cve2024-40891
urlvulncheck.com/blog/zyxel-telnet-vulns

Metadata

affected productZyxel
attack targetServer
tls stateTLSDecrypt
created at2026_11_06
deploymentInternal
confidenceMedium
signature severityMajor
tagExploit
updated at2026_11_06
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application

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