{"cveID":"CVE-2021-30554","vendorProject":"Google","product":"Chromium WebGL","vulnerabilityName":"Google Chromium WebGL Use-After-Free Vulnerability","dateAdded":"2021-11-03","shortDescription":"Google Chromium WebGL contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-30554","cwes":["CWE-416"],"year":2021,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2021-30554","technique":"T1059.007","technique_name_at_mapping":"JavaScript","mapping_type":"exploitation_technique","capability_group":"use_after_free","comments":"CVE-2021-30554 allows an adversary to use JavaScript to exploit WebGL component of the Chromium browser that allows for execution of arbitrary code.","references":["https://attackerkb.com/topics/BAdojKKNTO/cve-2021-30554","https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.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-2021-30554","technique":"T1203","technique_name_at_mapping":"Exploitation for Client Execution","mapping_type":"exploitation_technique","capability_group":"use_after_free","comments":"CVE-2021-30554 allows an adversary to use JavaScript to exploit WebGL component of the Chromium browser that allows for execution of arbitrary code.","references":["https://attackerkb.com/topics/BAdojKKNTO/cve-2021-30554","https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.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":"T1059.007","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"JavaScript","name_at_mapping":"JavaScript","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":29,"has_detection_strategy":true},{"id":"T1203","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Exploitation for Client Execution","name_at_mapping":"Exploitation for Client Execution","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":35,"has_detection_strategy":true}],"mapping_types":["exploitation_technique"],"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":"2026-08-23 05:47 UTC","_attack_version":"19.2"}