{"api_version":"1","generated_at":"2026-07-28T08:01:07+00:00","cve":"CVE-2026-64408","urls":{"html":"https://cve.report/CVE-2026-64408","api":"https://cve.report/api/cve/CVE-2026-64408.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64408","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64408"},"summary":{"title":"Bluetooth: bnep: pin L2CAP connection during netdev registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: pin L2CAP connection during netdev registration\n\nbnep_add_connection() reads the L2CAP connection without holding the\nchannel lock, then passes its HCI device to register_netdev(). Controller\nteardown can clear and release that connection concurrently, leaving the\nnetwork device registration path to dereference a freed parent device.\n\nTake a reference to the L2CAP connection while holding the channel lock.\nRetain it until register_netdev() has taken the parent device reference.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:24","updated_at":"2026-07-27 05:16:47"},"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/563a8573047182f550b1e1e030615755cd8c41da","name":"https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944","name":"https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31","name":"https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee","name":"https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19","name":"https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc","name":"https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302","name":"https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5","name":"https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64408","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64408","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b 390b5db3ff8745187f094c4e915663b7b1f98944 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b 46a88784c4c9b96954dd86f747ce93f65efa1302 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b 551ae773ec64045b4e72099132654887e0270bcc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65f53e9802dbfae0e5758a91793c3f5f8bece49b ae215c5b6422d8eda443b861b124bd1be6969c31 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64408","cve":"CVE-2026-64408","epss":"0.002620000","percentile":"0.178850000","score_date":"2026-07-27","updated_at":"2026-07-28 00:07:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/bnep/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"390b5db3ff8745187f094c4e915663b7b1f98944","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"46a88784c4c9b96954dd86f747ce93f65efa1302","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"551ae773ec64045b4e72099132654887e0270bcc","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"ae215c5b6422d8eda443b861b124bd1be6969c31","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"df22adc7eafc22e651561813c11dc51a796b12ee","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"a6b22dbd80926556290ad2243be25218d6956a19","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"563a8573047182f550b1e1e030615755cd8c41da","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"},{"lessThan":"bb067a99a0356196c0b89a95721985485ebce5a5","status":"affected","version":"65f53e9802dbfae0e5758a91793c3f5f8bece49b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/bnep/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.13"},{"lessThan":"3.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"3.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: pin L2CAP connection during netdev registration\n\nbnep_add_connection() reads the L2CAP connection without holding the\nchannel lock, then passes its HCI device to register_netdev(). Controller\nteardown can clear and release that connection concurrently, leaving the\nnetwork device registration path to dereference a freed parent device.\n\nTake a reference to the L2CAP connection while holding the channel lock.\nRetain it until register_netdev() has taken the parent device reference."}],"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":"2026-07-27T05:00:39.563Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944"},{"url":"https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302"},{"url":"https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc"},{"url":"https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31"},{"url":"https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee"},{"url":"https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19"},{"url":"https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da"},{"url":"https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5"}],"title":"Bluetooth: bnep: pin L2CAP connection during netdev registration","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64408","datePublished":"2026-07-25T08:50:49.807Z","dateReserved":"2026-07-19T15:36:31.786Z","dateUpdated":"2026-07-27T05:00:39.563Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:24","lastModifiedDate":"2026-07-27 05:16:47","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":"64408","Ordinal":"1","Title":"Bluetooth: bnep: pin L2CAP connection during netdev registration","CVE":"CVE-2026-64408","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64408","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: pin L2CAP connection during netdev registration\n\nbnep_add_connection() reads the L2CAP connection without holding the\nchannel lock, then passes its HCI device to register_netdev(). Controller\nteardown can clear and release that connection concurrently, leaving the\nnetwork device registration path to dereference a freed parent device.\n\nTake a reference to the L2CAP connection while holding the channel lock.\nRetain it until register_netdev() has taken the parent device reference.","Type":"Description","Title":"Bluetooth: bnep: pin L2CAP connection during netdev registration"}]}}}