{"id":"CVE-2026-20436","state":"PUBLISHED","title":"In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obt","description":"In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00473802; Issue ID: MSV-5970.","publishedAt":"2026-03-02T08:39:13.985Z","updatedAt":"2026-03-30T13:05:41.183Z","severity":{"score":6.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"MediaTek","products":["MediaTek, Inc. MediaTek chipset"],"affected":[{"vendor":"MediaTek, Inc.","product":"MediaTek chipset","defaultStatus":"unaffected","versions":[{"version":"MT7902","status":"affected"},{"version":"MT7920","status":"affected"},{"version":"MT7921","status":"affected"},{"version":"MT7922","status":"affected"},{"version":"MT7925","status":"affected"},{"version":"MT7927","status":"affected"},{"version":"MT8696","status":"affected"}]}],"references":["https://corp.mediatek.com/product-security-bulletin/March-2026"],"weaknesses":["CWE-120"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20436.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20436","state":"PUBLISHED","datePublished":"2026-03-02T08:39:13.985Z","dateUpdated":"2026-03-30T13:05:41.183Z","assignerShortName":"MediaTek","assignerOrgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","dateReserved":"2025-11-03T01:30:59.011Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00473802; Issue ID: MSV-5970."}],"affected":[{"vendor":"MediaTek, Inc.","product":"MediaTek chipset","defaultStatus":"unaffected","versions":[{"version":"MT7902","status":"affected"},{"version":"MT7920","status":"affected"},{"version":"MT7921","status":"affected"},{"version":"MT7922","status":"affected"},{"version":"MT7925","status":"affected"},{"version":"MT7927","status":"affected"},{"version":"MT8696","status":"affected"}]}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/March-2026"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","type":"CWE","lang":"en","description":"CWE-120 Classic Buffer Overflow"}]}],"providerMetadata":{"shortName":"MediaTek","orgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","dateUpdated":"2026-03-30T13:05:41.183Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-03-02T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-20436"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-03T04:55:57.149Z"}}]}}}