{"cveID":"CVE-2020-29557","vendorProject":"D-Link","product":"DIR-825 R1 Devices","vulnerabilityName":"D-Link DIR-825 R1 Devices Buffer Overflow Vulnerability","dateAdded":"2021-11-03","shortDescription":"D-Link DIR-825 R1 devices contain a buffer overflow vulnerability in the web interface that may allow for remote code execution.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-29557","cwes":["CWE-119"],"year":2020,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2020-29557","technique":"T1190","technique_name_at_mapping":"Exploit Public-Facing Application","mapping_type":"exploitation_technique","capability_group":"buffer_overflow","comments":"CVE-2020-29557 is a buffer overflow vulnerability  in the web interface allows attackers to achieve pre-authentication remote code execution. Unidentified threat actors are reported to have been actively exploiting it to co-opt them to a Mirai-variant botnet used for carrying out DDoS attacks, merely two days after its public disclosure. ","references":["https://thehackernews.com/2021/08/hackers-exploiting-new-auth-bypass-bug.html"],"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-2020-29557","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"primary_impact","capability_group":"buffer_overflow","comments":"CVE-2020-29557 is a buffer overflow vulnerability  in the web interface allows attackers to achieve pre-authentication remote code execution. Unidentified threat actors are reported to have been actively exploiting it to co-opt them to a Mirai-variant botnet used for carrying out DDoS attacks, merely two days after its public disclosure. ","references":["https://thehackernews.com/2021/08/hackers-exploiting-new-auth-bypass-bug.html"],"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-2020-29557","technique":"T1584.005","technique_name_at_mapping":"Botnet","mapping_type":"secondary_impact","capability_group":"buffer_overflow","comments":"CVE-2020-29557 is a buffer overflow vulnerability  in the web interface allows attackers to achieve pre-authentication remote code execution. Unidentified threat actors are reported to have been actively exploiting it to co-opt them to a Mirai-variant botnet used for carrying out DDoS attacks, merely two days after its public disclosure. ","references":["https://thehackernews.com/2021/08/hackers-exploiting-new-auth-bypass-bug.html"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1059","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Command and Scripting Interpreter","name_at_mapping":"Command and Scripting Interpreter","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":95,"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":"T1584.005","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Botnet","name_at_mapping":"Botnet","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":0,"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":"partial","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}