{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20458","assignerOrgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","state":"PUBLISHED","assignerShortName":"MediaTek","dateReserved":"2025-11-03T01:30:59.014Z","datePublished":"2026-07-01T03:13:59.663Z","dateUpdated":"2026-07-02T03:55:19.970Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","shortName":"MediaTek","dateUpdated":"2026-07-01T03:13:59.663Z"},"descriptions":[{"lang":"en","value":"In Modem, there is a possible memory corruption due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01402160; Issue ID: MSV-7298."}],"affected":[{"vendor":"MediaTek, Inc.","product":"MediaTek chipset","defaultStatus":"unaffected","versions":[{"version":"MT2716","status":"affected"},{"version":"MT2737","status":"affected"},{"version":"MT6739","status":"affected"},{"version":"MT6761","status":"affected"},{"version":"MT6762","status":"affected"},{"version":"MT6763","status":"affected"},{"version":"MT6765","status":"affected"},{"version":"MT6767","status":"affected"},{"version":"MT6768","status":"affected"},{"version":"MT6769","status":"affected"},{"version":"MT6771","status":"affected"},{"version":"MT6779","status":"affected"},{"version":"MT6781","status":"affected"},{"version":"MT6783","status":"affected"},{"version":"MT6785","status":"affected"},{"version":"MT6789","status":"affected"},{"version":"MT6813","status":"affected"},{"version":"MT6835","status":"affected"},{"version":"MT6858","status":"affected"},{"version":"MT6878","status":"affected"},{"version":"MT6879","status":"affected"},{"version":"MT6881","status":"affected"},{"version":"MT6886","status":"affected"},{"version":"MT6895","status":"affected"},{"version":"MT6896","status":"affected"},{"version":"MT6897","status":"affected"},{"version":"MT6899","status":"affected"},{"version":"MT6980","status":"affected"},{"version":"MT6982","status":"affected"},{"version":"MT6983","status":"affected"},{"version":"MT6985","status":"affected"},{"version":"MT6986","status":"affected"},{"version":"MT6986D","status":"affected"},{"version":"MT6988","status":"affected"},{"version":"MT6989","status":"affected"},{"version":"MT6990","status":"affected"},{"version":"MT6991","status":"affected"},{"version":"MT6993","status":"affected"},{"version":"MT8666","status":"affected"},{"version":"MT8667","status":"affected"},{"version":"MT8668","status":"affected"},{"version":"MT8673","status":"affected"},{"version":"MT8676","status":"affected"},{"version":"MT8678","status":"affected"},{"version":"MT8755","status":"affected"},{"version":"MT8765","status":"affected"},{"version":"MT8766","status":"affected"},{"version":"MT8766R","status":"affected"},{"version":"MT8768","status":"affected"},{"version":"MT8775","status":"affected"},{"version":"MT8781","status":"affected"},{"version":"MT8786","status":"affected"},{"version":"MT8788","status":"affected"},{"version":"MT8788E","status":"affected"},{"version":"MT8789","status":"affected"},{"version":"MT8792","status":"affected"},{"version":"MT8793","status":"affected"},{"version":"MT8795T","status":"affected"},{"version":"MT8796","status":"affected"},{"version":"MT8798","status":"affected"},{"version":"MT8863","status":"affected"},{"version":"MT8873","status":"affected"},{"version":"MT8883","status":"affected"},{"version":"MT8893","status":"affected"}]}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/July-2026"}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write"}]}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"ADJACENT_NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-01T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-20458"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-02T03:55:19.970Z"}}]}}