{"cveID":"CVE-2021-1497","vendorProject":"Cisco","product":"HyperFlex HX","vulnerabilityName":"Cisco HyperFlex HX Installer Virtual Machine Command Injection Vulnerability","dateAdded":"2021-11-03","shortDescription":"Cisco HyperFlex HX Installer Virtual Machine contains an insufficient input validation vulnerability which could allow an attacker to execute commands on an affected device as the root user.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-1497","cwes":["CWE-78"],"year":2021,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2021-1497","technique":"T1133","technique_name_at_mapping":"External Remote Services","mapping_type":"exploitation_technique","capability_group":"command_injection","comments":"CVE-2021-1497 is a critical vulnerability in the web-based management interface of Cisco HyperFlex HX Installer Virtual Machine. This vulnerability allows an unauthenticated, remote attacker to perform a command injection attack against an affected device","references":["https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-279a","https://www.rapid7.com/db/vulnerabilities/cisco-hyperflex-hx-cisco-sa-hyperflex-rce-tjjnrkpr/"],"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-2021-1497","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"primary_impact","capability_group":"command_injection","comments":"CVE-2021-1497 is a critical vulnerability in the web-based management interface of Cisco HyperFlex HX Installer Virtual Machine. This vulnerability allows an unauthenticated, remote attacker to perform a command injection attack against an affected device","references":["https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-279a","https://www.rapid7.com/db/vulnerabilities/cisco-hyperflex-hx-cisco-sa-hyperflex-rce-tjjnrkpr/"],"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":"T1133","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"External Remote Services","name_at_mapping":"External Remote Services","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":20,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}