{"cveID":"CVE-2023-5217","vendorProject":"Google","product":"Chromium libvpx","vulnerabilityName":"Google Chromium libvpx Heap Buffer Overflow Vulnerability","dateAdded":"2023-10-02","shortDescription":"Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome.","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","dueDate":"2023-10-23","knownRansomwareCampaignUse":"Unknown","notes":"https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html; https://nvd.nist.gov/vuln/detail/CVE-2023-5217","cwes":["CWE-787"],"year":2023,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2023-5217","technique":"T1204.001","technique_name_at_mapping":"Malicious Link","mapping_type":"exploitation_technique","capability_group":"buffer_overflow","comments":"This vulnerability was exploited by a remote attacker using a crafted HTML page to trigger a heap buffer overflow in the vp8 encoding of libvpx, leading to heap corruption. This flaw was part of a spyware campaign. The exploitation allowed for program crashes or arbitrary code execution, ultimately resulting in the installation of spyware.","references":["https://techcrunch.com/2023/09/28/google-patches-zero-day-exploited-by-commercial-spyware-vendor/","https://securityaffairs.com/151625/hacking/google-fifth-chrome-zero-day-2023.html","https://thehackernews.com/2023/09/update-chrome-now-google-releases-patch.html","https://www.rapid7.com/db/vulnerabilities/google-chrome-cve-2023-5217/"],"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-2023-5217","technique":"T1574","technique_name_at_mapping":"Hijack Execution Flow","mapping_type":"primary_impact","capability_group":"buffer_overflow","comments":"This vulnerability was exploited by a remote attacker using a crafted HTML page to trigger a heap buffer overflow in the vp8 encoding of libvpx, leading to heap corruption. This flaw was part of a spyware campaign. The exploitation allowed for program crashes or arbitrary code execution, ultimately resulting in the installation of spyware.","references":["https://techcrunch.com/2023/09/28/google-patches-zero-day-exploited-by-commercial-spyware-vendor/","https://securityaffairs.com/151625/hacking/google-fifth-chrome-zero-day-2023.html","https://thehackernews.com/2023/09/update-chrome-now-google-releases-patch.html","https://www.rapid7.com/db/vulnerabilities/google-chrome-cve-2023-5217/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1204.001","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Malicious Link","name_at_mapping":"Malicious Link","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":4,"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":["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"}