{"schemaVersion":3,"id":"CVE-2024-48982","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. This value is assumed to be greater than or equal to 3, but the software doesn't ensure that this is the case. Supplying a length less than 3 leads to a buffer overflow in a buffer that is allocated later. It is simultaneously possible to cause another integer overflow by supplying large length values because the provided length value is increased by a few bytes to account for additional information that is supposed to be stored there. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.","dates":{"published":"2024-11-20T00:00:00.000Z","modified":"2024-11-25T21:03:47.200Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/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":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/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":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00482,"percentile":0.40296,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00482},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00482,"percentile":0.40296}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00482,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00482,"percentile":0.40296}]},"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-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/120.html"}],"affected":[{"vendor":"arm","product":"mbed","name":"mbed","label":"mbed","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"6.16.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.16.0","eol":null,"hubHref":"/vendor/arm/mbed"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/mbed-ce/mbed-os/blob/54e8693ef4ff7e025018094f290a1d5cf380941f/connectivity/FEATURE_BLE/libraries/cordio_stack/ble-host/sources/hci/dual_chip/hci_evt.c#L2748","label":"github.com/mbed-ce/…","hostname":"github.com","tags":["Product"]},{"url":"https://github.com/mbed-ce/mbed-os/pull/386","label":"github.com/mbed-ce/mbed-os/pull/386","hostname":"github.com","tags":["Issue Tracking","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2024-11-20T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-11-25T21:03:47.200Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T22:49:24.410Z","stale":false,"partial":false}}