CVE-2026-20418

{"id": "CVE-2026-20418", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-02-02T09:15:56.853", "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/February-2026", "tags": ["Vendor Advisory"], "source": "security@mediatek.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@mediatek.com", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In Thread, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00465153; Issue ID: MSV-4927."}], "lastModified": "2026-02-03T21:51:35.397", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:google:matter:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F9A93E8-E013-4822-A6FC-A116C1DD8161", "versionEndIncluding": "1.4"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7931:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9DDCA338-7A89-49FA-9F78-5FA6D69D1FC9"}, {"criteria": "cpe:2.3:h:mediatek:mt7933:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "727F29FD-E8DA-46F1-9C98-9D194E981E38"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@mediatek.com"}