{"cveID":"CVE-2022-42475","vendorProject":"Fortinet","product":"FortiOS","vulnerabilityName":"Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability","dateAdded":"2022-12-13","shortDescription":"Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2023-01-03","knownRansomwareCampaignUse":"Known","notes":"https://www.fortiguard.com/psirt/FG-IR-22-398;  https://nvd.nist.gov/vuln/detail/CVE-2022-42475","cwes":["CWE-197"],"year":2022,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2022-42475","technique":"T1190","technique_name_at_mapping":"Exploit Public-Facing Application","mapping_type":"exploitation_technique","capability_group":"buffer_overflow","comments":"CVE-2022-42475 is a remotely-expoitable heap overflow vulnerability. Adversaries have been observed exploiting this vulnerability to deliver malicious software to the target device.\n\nThis malicious software has observed anti-debugging and command and control capabilities (over HTTP).","references":["https://www.fortinet.com/blog/psirt-blogs/analysis-of-fg-ir-22-398-fortios-heap-based-buffer-overflow-in-sslvpnd","https://cloud.google.com/blog/topics/threat-intelligence/chinese-actors-exploit-fortios-flaw"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2022-42475","technique":"T1071.001","technique_name_at_mapping":"Web Protocols","mapping_type":"secondary_impact","capability_group":"buffer_overflow","comments":"CVE-2022-42475 is a remotely-expoitable heap overflow vulnerability. Adversaries have been observed exploiting this vulnerability to deliver malicious software to the target device.\n\nThis malicious software has observed anti-debugging and command and control capabilities (over HTTP).","references":["https://www.fortinet.com/blog/psirt-blogs/analysis-of-fg-ir-22-398-fortios-heap-based-buffer-overflow-in-sslvpnd","https://cloud.google.com/blog/topics/threat-intelligence/chinese-actors-exploit-fortios-flaw"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2022-42475","technique":"T1574","technique_name_at_mapping":"Hijack Execution Flow","mapping_type":"primary_impact","capability_group":"buffer_overflow","comments":"CVE-2022-42475 is a remotely-expoitable heap overflow vulnerability. Adversaries have been observed exploiting this vulnerability to deliver malicious software to the target device.\n\nThis malicious software has observed anti-debugging and command and control capabilities (over HTTP).","references":["https://www.fortinet.com/blog/psirt-blogs/analysis-of-fg-ir-22-398-fortios-heap-based-buffer-overflow-in-sslvpnd","https://cloud.google.com/blog/topics/threat-intelligence/chinese-actors-exploit-fortios-flaw"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2022-42475","technique":"T1622","technique_name_at_mapping":"Debugger Evasion","mapping_type":"secondary_impact","capability_group":"buffer_overflow","comments":"CVE-2022-42475 is a remotely-expoitable heap overflow vulnerability. Adversaries have been observed exploiting this vulnerability to deliver malicious software to the target device.\n\nThis malicious software has observed anti-debugging and command and control capabilities (over HTTP).","references":["https://www.fortinet.com/blog/psirt-blogs/analysis-of-fg-ir-22-398-fortios-heap-based-buffer-overflow-in-sslvpnd","https://cloud.google.com/blog/topics/threat-intelligence/chinese-actors-exploit-fortios-flaw"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1071.001","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Web Protocols","name_at_mapping":"Web Protocols","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":42,"has_detection_strategy":true},{"id":"T1190","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Exploit Public-Facing Application","name_at_mapping":"Exploit Public-Facing Application","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":149,"has_detection_strategy":true},{"id":"T1574","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Hijack Execution Flow","name_at_mapping":"Hijack Execution Flow","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":8,"has_detection_strategy":true},{"id":"T1622","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Debugger Evasion","name_at_mapping":"Debugger Evasion","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":1,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact","secondary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":["293ccb8c-bed8-4868-8296-bef30e303b7e"],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}