{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20402","assignerOrgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","state":"PUBLISHED","assignerShortName":"MediaTek","dateReserved":"2025-11-03T01:30:59.007Z","datePublished":"2026-02-02T08:14:38.923Z","dateUpdated":"2026-03-30T13:02:35.777Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","shortName":"MediaTek","dateUpdated":"2026-03-30T13:02:35.777Z"},"descriptions":[{"lang":"en","value":"In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, 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: MOLY00693083; Issue ID: MSV-5928."}],"affected":[{"vendor":"MediaTek, Inc.","product":"MediaTek chipset","defaultStatus":"unaffected","versions":[{"version":"MT2735","status":"affected"},{"version":"MT6833","status":"affected"},{"version":"MT6853","status":"affected"},{"version":"MT6855","status":"affected"},{"version":"MT6873","status":"affected"},{"version":"MT6875","status":"affected"},{"version":"MT6877","status":"affected"},{"version":"MT6880","status":"affected"},{"version":"MT6883","status":"affected"},{"version":"MT6885","status":"affected"},{"version":"MT6889","status":"affected"},{"version":"MT6890","status":"affected"},{"version":"MT6891","status":"affected"},{"version":"MT6893","status":"affected"},{"version":"MT8675","status":"affected"},{"version":"MT8771","status":"affected"},{"version":"MT8791","status":"affected"},{"version":"MT8791T","status":"affected"},{"version":"MT8797","status":"affected"}]}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/February-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":6.5,"attackVector":"ADJACENT_NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-02-17T14:17:13.680775Z","id":"CVE-2026-20402","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-17T14:17:23.584Z"}}]}}