{"cve":{"cve_id":"CVE-2023-20679","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":0.00093,"epss_percentile":0.0073,"epss_as_of":"2026-06-23","description":"In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588413; Issue ID: ALPS07588453.","published_at":"2023-04-06T00:00:00Z","last_modified_at":null,"cvss_v3_score":4.4,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","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":"partial","cwes":["CWE-125"],"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":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mediatek-inc.","vendor_name":"MediaTek, Inc.","product_slug":"mt5221-mt6781-mt6789-mt6833-mt6855-mt6877-mt6879-mt6895-mt6983-mt7663-mt7668-mt7902-mt7921-mt8167s-mt8168-mt8169-mt8175-mt8185-mt8362a-mt8365-mt8385-mt8518-mt8532-mt8675-mt8695-mt8766-mt8768-mt8771-mt8781-mt8786-mt8788-mt8789-mt8791t-mt8797-mt8798","product_name":"MT5221, MT6781, MT6789, MT6833, MT6855, MT6877, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8169, MT8175, MT8185, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8675, MT8695, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8797, MT8798","version_start":"Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)","version_start_inclusive":true,"version_end":"Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only)","version_end_inclusive":true,"cpe23_uri":"cve5:mediatek-inc.:mt5221-mt6781-mt6789-mt6833-mt6855-mt6877-mt6879-mt6895-mt6983-mt7663-mt7668-mt7902-mt7921-mt8167s-mt8168-mt8169-mt8175-mt8185-mt8362a-mt8365-mt8385-mt8518-mt8532-mt8675-mt8695-mt8766-mt8768-mt8771-mt8781-mt8786-mt8788-mt8789-mt8791t-mt8797-mt8798:Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 chipsets only):Android 11.0, 12.0, 13.0 / Yocto 3.1, 3.3, 4.0 / Linux-4.19 (for MT5221, MT7663, MT7668, MT7902 and MT7921 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"}]}