{"schemaVersion":3,"id":"CVE-2026-20504","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"In Modem, there is a possible system crash due to a missing bounds check. 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: MOLY00755024; Issue ID: MSV-7865.","dates":{"published":"2026-09-07T01:57:18.937Z","modified":"2026-09-07T10:36:49.120Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00192,"percentile":0.08355,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00192},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00192,"percentile":0.08355}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00192,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00192,"percentile":0.08355}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-617","name":"Reachable Assertion","description":"The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/617.html"}],"affected":[{"vendor":"mediatek, inc.","product":"mediatek chipset","name":"MediaTek chipset","label":"mediatek chipset","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"MT2735","noFixRecorded":false,"fixedIn":null},{"text":"MT6833","noFixRecorded":false,"fixedIn":null},{"text":"MT6853","noFixRecorded":false,"fixedIn":null},{"text":"MT6855","noFixRecorded":false,"fixedIn":null},{"text":"MT6873","noFixRecorded":false,"fixedIn":null},{"text":"MT6875","noFixRecorded":false,"fixedIn":null},{"text":"MT6877","noFixRecorded":false,"fixedIn":null},{"text":"MT6880","noFixRecorded":false,"fixedIn":null},{"text":"MT6883","noFixRecorded":false,"fixedIn":null},{"text":"MT6885","noFixRecorded":false,"fixedIn":null},{"text":"MT6889","noFixRecorded":false,"fixedIn":null},{"text":"MT6890","noFixRecorded":false,"fixedIn":null},{"text":"MT6891","noFixRecorded":false,"fixedIn":null},{"text":"MT6893","noFixRecorded":false,"fixedIn":null},{"text":"MT8675","noFixRecorded":false,"fixedIn":null},{"text":"MT8771","noFixRecorded":false,"fixedIn":null},{"text":"MT8791","noFixRecorded":false,"fixedIn":null},{"text":"MT8791T","noFixRecorded":false,"fixedIn":null},{"text":"MT8797","noFixRecorded":false,"fixedIn":null}],"versionsText":"MT2735 | MT6833 | MT6853 | MT6855 | MT6873 | MT6875 | MT6877 | MT6880 | MT6883 | MT6885 | MT6889 | MT6890 | MT6891 | MT6893 | MT8675 | MT8771 | MT8791 | MT8791T | MT8797","eol":null,"hubHref":"/vendor/mediatek_inc/mediatek_chipset"},{"vendor":"mediatek","product":"mt2735_firmware","name":"mt2735 firmware","label":"mt2735_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt2735"},{"vendor":"mediatek","product":"mt6833_firmware","name":"mt6833 firmware","label":"mt6833_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6833"},{"vendor":"mediatek","product":"mt6853_firmware","name":"mt6853 firmware","label":"mt6853_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6853"},{"vendor":"mediatek","product":"mt6855_firmware","name":"mt6855 firmware","label":"mt6855_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6855"},{"vendor":"mediatek","product":"mt6873_firmware","name":"mt6873 firmware","label":"mt6873_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6873"},{"vendor":"mediatek","product":"mt6875_firmware","name":"mt6875 firmware","label":"mt6875_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6875"},{"vendor":"mediatek","product":"mt6877_firmware","name":"mt6877 firmware","label":"mt6877_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6877"},{"vendor":"mediatek","product":"mt6880_firmware","name":"mt6880 firmware","label":"mt6880_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6880"},{"vendor":"mediatek","product":"mt6883_firmware","name":"mt6883 firmware","label":"mt6883_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6883"},{"vendor":"mediatek","product":"mt6885_firmware","name":"mt6885 firmware","label":"mt6885_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6885"},{"vendor":"mediatek","product":"mt6889_firmware","name":"mt6889 firmware","label":"mt6889_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6889"},{"vendor":"mediatek","product":"mt6890_firmware","name":"mt6890 firmware","label":"mt6890_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6890"},{"vendor":"mediatek","product":"mt6891_firmware","name":"mt6891 firmware","label":"mt6891_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6891"},{"vendor":"mediatek","product":"mt6893_firmware","name":"mt6893 firmware","label":"mt6893_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt6893"},{"vendor":"mediatek","product":"mt8675_firmware","name":"mt8675 firmware","label":"mt8675_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt8675"},{"vendor":"mediatek","product":"mt8771_firmware","name":"mt8771 firmware","label":"mt8771_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt8771"},{"vendor":"mediatek","product":"mt8791_firmware","name":"mt8791 firmware","label":"mt8791_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt8791"},{"vendor":"mediatek","product":"mt8791t_firmware","name":"mt8791t firmware","label":"mt8791t_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt8791t"},{"vendor":"mediatek","product":"mt8797_firmware","name":"mt8797 firmware","label":"mt8797_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/mediatek/mt8797"}],"affectedCount":20,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.mediatek.com/product-security-bulletin/September-2026","label":"www.mediatek.com/product-security-bulletin/September-2026","hostname":"www.mediatek.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-07T01:57:18.937Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-07T10:36:49.120Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":21,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T02:27:43.943Z","stale":false,"partial":false}}