{"cve":{"cve_id":"CVE-2023-20663","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00095,"epss_percentile":0.00814,"epss_as_of":"2026-06-23","description":"In wlan, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07560741; Issue ID: ALPS07560741.","published_at":"2023-04-06T00:00:00Z","last_modified_at":null,"cvss_v3_score":6.7,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-190"],"nvd_references":["https://corp.mediatek.com/product-security-bulletin/April-2023"],"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":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-29T01:24:59.365230Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"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":"mediatek-inc.","vendor_name":"MediaTek, Inc.","product_slug":"mt5221-mt6879-mt6895-mt6983-mt7902-mt7921-mt8167s-mt8168-mt8175-mt8362a-mt8365-mt8385-mt8518-mt8532-mt8696-mt8766-mt8768-mt8771-mt8781-mt8786-mt8788-mt8789-mt8791t-mt8795t-mt8797-mt8798","product_name":"MT5221, MT6879, MT6895, MT6983, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8696, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8795T, MT8797, MT8798","version_start":"Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)","version_start_inclusive":true,"version_end":"Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)","version_end_inclusive":true,"cpe23_uri":"cve5:mediatek-inc.:mt5221-mt6879-mt6895-mt6983-mt7902-mt7921-mt8167s-mt8168-mt8175-mt8362a-mt8365-mt8385-mt8518-mt8532-mt8696-mt8766-mt8768-mt8771-mt8781-mt8786-mt8788-mt8789-mt8791t-mt8795t-mt8797-mt8798:Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only):Android 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7921 and MT7902 chipsets only)"}],"exploit_refs":[],"news":[],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/April-2023","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2023-04-06T00:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:25:52.357625Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:25:52.357625Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:25:52.357625Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:24:59.365230Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:24:59.365230Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:24:59.365230Z","label":"SSVC decision revised","source":"vulnrichment"}]}