{"cve":{"cve_id":"CVE-2025-21043","is_kev":true,"kev_date_added":"2025-10-02","kev_vendor_project":"Samsung","kev_product":"Mobile Devices","kev_vulnerability_name":"Samsung Mobile Devices Out-of-Bounds Write Vulnerability","kev_short_description":"Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.","kev_required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","kev_due_date":"2025-10-23","kev_known_ransomware":false,"kev_notes":"https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21043","kev_cwes":["CWE-787"],"epss_score":0.01435,"epss_percentile":0.69657,"epss_as_of":"2026-06-23","description":"Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.","published_at":"2025-09-12T07:21:51.025000Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:25:38.395576Z"},"effective_severity":"HIGH","badges":["kev"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"samsung-mobile","vendor_name":"Samsung Mobile","product_slug":"samsung-mobile-devices","product_name":"Samsung Mobile Devices","version_start":"SMR Sep-2025 Release in Android 13, 14, 15, 16","version_start_inclusive":true,"version_end":"SMR Sep-2025 Release in Android 13, 14, 15, 16","version_end_inclusive":true,"cpe23_uri":"cve5:samsung-mobile:samsung-mobile-devices:SMR Sep-2025 Release in Android 13, 14, 15, 16:SMR Sep-2025 Release in Android 13, 14, 15, 16"}],"exploit_refs":[],"news":[],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2025-09-12T07:21:51.025000Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2025-10-02T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:42:56.358585Z","label":"CVSS score revised","source":"cvelistv5"}]}