ET WEB_SPECIFIC_APPS Cisco Secure Firewall Management Center Authentication Bypass (CVE-2026-20079)

SID: 2068766Rev: 15 views
Sourceet/open
CreatedApril 15, 2026
UpdatedApril 15, 2026
Classificationweb-application-attack
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Cisco Secure Firewall Management Center Authentication Bypass (CVE-2026-20079)"; flow:established,to_server; http.cookie; content:"CGISESSID|3d|csm_processes"; fast_pattern; reference:url,www.vulncheck.com/blog/cisco-fmc-auth-bypass-cve-2026-20079; reference:cve,2026-20079; classtype:web-application-attack; sid:2068766; rev:1; metadata:affected_product Cisco_FMC, attack_target Server, tls_state TLSDecrypt, created_at 2026_04_15, cve CVE_2026_20079, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_04_15, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

References

urlwww.vulncheck.com/blog/cisco-fmc-auth-bypass-cve-2026-20079
cve2026-20079

Metadata

affected productCisco_FMC
attack targetServer
tls stateTLSDecrypt
created at2026_04_15
deploymentSSLDecrypt
confidenceHigh
signature severityMajor
tagExploit
updated at2026_04_15
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application

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