{"api_version":"1","generated_at":"2026-06-03T06:12:44+00:00","cve":"CVE-2026-46056","urls":{"html":"https://cve.report/CVE-2026-46056","api":"https://cve.report/api/cve/CVE-2026-46056.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46056","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46056"},"summary":{"title":"Bluetooth: hci_event: fix potential UAF in SSP passkey handlers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix potential UAF in SSP passkey handlers\n\nhci_conn lookup and field access must be covered by hdev lock in\nhci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise\nthe connection can be freed concurrently.\n\nExtend the hci_dev_lock critical section to cover all conn usage in both\nhandlers.\n\nKeep the existing keypress notification behavior unchanged by routing\nthe early exits through a common unlock path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:25","updated_at":"2026-06-01 17:17:21"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef","name":"https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7","name":"https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8","name":"https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47","name":"https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993","name":"https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2","name":"https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46056","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46056","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92a25256f142d55e25f9959441cea6ddeabae57e b6ae482f88654db407c8c17619d4b62959b903ef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92a25256f142d55e25f9959441cea6ddeabae57e 204028af77a265e31ceb4ba7f643349a3cca72b2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92a25256f142d55e25f9959441cea6ddeabae57e 01a6431766c35dfedb86e0cb5d3fc80c6d604a47 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92a25256f142d55e25f9959441cea6ddeabae57e e08d75753db17aa943d7622f09d9c217b5bfd3b8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix potential UAF in SSP passkey handlers\n\nhci_conn lookup and field access must be covered by hdev lock in\nhci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise\nthe connection can be freed concurrently.\n\nExtend the hci_dev_lock critical section to cover all conn usage in both\nhandlers.\n\nKeep the existing keypress notification behavior unchanged by routing\nthe early exits through a common unlock path."}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-01T16:17:47.204Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef"},{"url":"https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2"},{"url":"https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47"},{"url":"https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8"},{"url":"https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7"},{"url":"https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993"}],"title":"Bluetooth: hci_event: fix potential UAF in SSP passkey handlers","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46056","datePublished":"2026-05-27T12:57:15.150Z","dateReserved":"2026-05-13T15:03:33.094Z","dateUpdated":"2026-06-01T16:17:47.204Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:25","lastModifiedDate":"2026-06-01 17:17:21","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46056","Ordinal":"1","Title":"Bluetooth: hci_event: fix potential UAF in SSP passkey handlers","CVE":"CVE-2026-46056","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46056","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix potential UAF in SSP passkey handlers\n\nhci_conn lookup and field access must be covered by hdev lock in\nhci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise\nthe connection can be freed concurrently.\n\nExtend the hci_dev_lock critical section to cover all conn usage in both\nhandlers.\n\nKeep the existing keypress notification behavior unchanged by routing\nthe early exits through a common unlock path.","Type":"Description","Title":"Bluetooth: hci_event: fix potential UAF in SSP passkey handlers"}]}}}