CVE-2026-20525

{"id": "CVE-2026-20525", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20525", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-05T10:16:18.568161Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.6}]}, "affected": [{"source": "security@mediatek.com", "affectedData": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT2716"}, {"status": "affected", "version": "MT6835"}, {"status": "affected", "version": "MT6858"}, {"status": "affected", "version": "MT6878"}, {"status": "affected", "version": "MT6881"}, {"status": "affected", "version": "MT6897"}, {"status": "affected", "version": "MT6899"}, {"status": "affected", "version": "MT6982"}, {"status": "affected", "version": "MT6986"}, {"status": "affected", "version": "MT6988"}, {"status": "affected", "version": "MT6991"}, {"status": "affected", "version": "MT6993"}, {"status": "affected", "version": "MT8668"}, {"status": "affected", "version": "MT8676"}, {"status": "affected", "version": "MT8678"}, {"status": "affected", "version": "MT8755"}, {"status": "affected", "version": "MT8775"}, {"status": "affected", "version": "MT8792"}, {"status": "affected", "version": "MT8793"}, {"status": "affected", "version": "MT8863"}, {"status": "affected", "version": "MT8873"}, {"status": "affected", "version": "MT8883"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-05T02:16:51.163", "references": [{"url": "https://www.mediatek.com/product-security-bulletin/October-2026", "tags": ["Vendor Advisory"], "source": "security@mediatek.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@mediatek.com", "description": [{"lang": "en", "value": "CWE-617"}]}], "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: MOLY01870473 / MOLY00814393; Issue ID: MSV-9041."}], "lastModified": "2026-10-08T15:23:06.023", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt2716_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2F958B4-BC5E-40CF-A3E6-3D923DD0296A"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt2716:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6FCBDB1C-E6E1-46A4-A727-A752D720DCA6"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "00B1D726-8183-4667-B46D-18EF110EA9D9"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "19A63103-C708-48EC-B44D-5E465A6B79C5"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, 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