{"cveID":"CVE-2020-5735","vendorProject":"Amcrest","product":"Cameras and Network Video Recorder (NVR)","vulnerabilityName":"Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability","dateAdded":"2021-11-03","shortDescription":"Amcrest cameras and NVR contain a stack-based buffer overflow vulnerability through port 37777 that allows an unauthenticated, remote attacker to crash the device and possibly execute code.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-5735","cwes":["CWE-121"],"year":2020,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2020-5735","technique":"T1499","technique_name_at_mapping":"Endpoint Denial of Service","mapping_type":"secondary_impact","capability_group":"buffer_overflow","comments":"CVE-2020-5735 is a stack-based buffer overflow vulnerability in Amcrest cameras and NVR that allows an authenticated remote attacker to possibly execute unauthorized code over port 37777 and crash the device.","references":["https://www.tenable.com/security/research/tra-2020-20"],"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-2020-5735","technique":"T1574","technique_name_at_mapping":"Hijack Execution Flow","mapping_type":"primary_impact","capability_group":"buffer_overflow","comments":"CVE-2020-5735 is a stack-based buffer overflow vulnerability in Amcrest cameras and NVR that allows an authenticated remote attacker to possibly execute unauthorized code over port 37777 and crash the device.","references":["https://www.tenable.com/security/research/tra-2020-20"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1499","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Endpoint Denial of Service","name_at_mapping":"Endpoint Denial of Service","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":3,"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}],"mapping_types":["primary_impact","secondary_impact"],"has_exploitation_technique":false,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}