{"status":"success","data":{"id":"CVE-2026-76418","slug":"cve-2026-76418-cisco-secure-firewall-asa-software-and-cisco-secure-ftd-software","title":"Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Unchecked Return Value to NULL Pointer Dereference Vulnerability","summary":"Cisco Secure Firewall ASA Software and Cisco Secure FTD Software contains an unchecked return value to NULL pointer dereference vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.","description":"Cisco Secure Firewall ASA Software and Cisco Secure FTD Software contains an unchecked return value to NULL pointer dereference vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.","severity":"HIGH","cvss_score":7.8,"cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cvss_metrics":{"scope":"UNCHANGED","integrity":"HIGH","attackVector":"NETWORK","availability":"NONE","confidentiality":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","privilegesRequired":"NONE"},"epss_score":0.00821,"epss_percentile":0.57306,"cisa_kev":true,"cisa_date_added":"2026-10-29","cisa_due_date":"2026-11-01","ransomware_campaign":"Unknown","threat_actors":["Unknown In-The-Wild Threat Cluster"],"exploit_status":"active_wild","cwes":[{"id":"CWE-690","name":"Common Weakness Enumeration Flaw"}],"affected_vendors":["Cisco"],"affected_products":[{"vendor":"Cisco","product":"Secure Firewall ASA Software and Cisco Secure FTD Software","fixed_version":"Refer to vendor advisory for patch release","affected_versions":"All vulnerable builds prior to vendor emergency patch"}],"ai_analysis":{"sigma_rule":"title: Suspicious CVE-2026-76418 Activity\nstatus: high\nlogsource:\n  category: process_creation\ndetection:\n  selection:\n    CommandLine|contains: 'CVE-2026-76418'\n  condition: selection","analyzed_at":"2026-11-01T06:47:31.289Z","model_provider":"Gemini 2.0 Flash Security Sentinel","executive_summary":"Cisco Secure Firewall ASA Software and Cisco Secure FTD Software contains an unchecked return value to NULL pointer dereference vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.","detection_guidance":"Monitor endpoint execution logs and network traffic for unusual connections originating from Secure Firewall ASA Software and Cisco Secure FTD Software.","mitigation_playbook":["Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","Apply security updates according to vendor instructions.","Ensure network firewalls restrict exposure of administrative ports."],"technical_root_cause":"Vulnerability in Secure Firewall ASA Software and Cisco Secure FTD Software allowing anomalous execution paths when processing untrusted input.","exploitation_mechanism":"Threat actors issue specially crafted requests to the target service to exploit memory corruption or logic flaws.","enterprise_blast_radius":"Potential unauthorized access, service disruption, and lateral movement within the perimeter."},"references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-76418","type":"cisa","title":"CISA KEV Catalog Reference"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76418","type":"advisory","title":"NVD Official Detail"}],"published_at":"2026-10-29","updated_at":"2026-11-01"}}