{"api_version":"1","generated_at":"2026-04-22T19:07:50+00:00","cve":"CVE-2026-23447","urls":{"html":"https://cve.report/CVE-2026-23447","api":"https://cve.report/api/cve/CVE-2026-23447.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23447","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23447"},"summary":{"title":"net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check\n\nThe same bounds-check bug fixed for NDP16 in the previous patch also\nexists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated\nagainst the total skb length without accounting for ndpoffset, allowing\nout-of-bounds reads when the NDP32 is placed near the end of the NTB.\n\nAdd ndpoffset to the nframes bounds check and use struct_size_t() to\nexpress the NDP-plus-DPE-array size more clearly.\n\nCompile-tested only.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-03 16:16:30","updated_at":"2026-04-07 13:21:09"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54","name":"https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16","name":"https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2","name":"https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5","name":"https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391","name":"https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23447","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23447","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0fa81b304a7973a499f844176ca031109487dd31 125f932a76a97904ef8a555f1dd53e5d0e288c54 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0fa81b304a7973a499f844176ca031109487dd31 af0d1613d6751489dbf9f69aac1123f0b1e566e5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0fa81b304a7973a499f844176ca031109487dd31 a5bd5a2710310c965ea4153cba4210988a3454e2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0fa81b304a7973a499f844176ca031109487dd31 de70da1fb1d152e981ecb3157f7ec2b633005c16 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0fa81b304a7973a499f844176ca031109487dd31 77914255155e68a20aa41175edeecf8121dac391 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a270ca35a9499b58366d696d3290eaa4697a42db git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.20 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.10 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0-rc5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23447","cve":"CVE-2026-23447","epss":"0.000180000","percentile":"0.046140000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/usb/cdc_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"125f932a76a97904ef8a555f1dd53e5d0e288c54","status":"affected","version":"0fa81b304a7973a499f844176ca031109487dd31","versionType":"git"},{"lessThan":"af0d1613d6751489dbf9f69aac1123f0b1e566e5","status":"affected","version":"0fa81b304a7973a499f844176ca031109487dd31","versionType":"git"},{"lessThan":"a5bd5a2710310c965ea4153cba4210988a3454e2","status":"affected","version":"0fa81b304a7973a499f844176ca031109487dd31","versionType":"git"},{"lessThan":"de70da1fb1d152e981ecb3157f7ec2b633005c16","status":"affected","version":"0fa81b304a7973a499f844176ca031109487dd31","versionType":"git"},{"lessThan":"77914255155e68a20aa41175edeecf8121dac391","status":"affected","version":"0fa81b304a7973a499f844176ca031109487dd31","versionType":"git"},{"status":"affected","version":"8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7","versionType":"git"},{"status":"affected","version":"4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6","versionType":"git"},{"status":"affected","version":"a270ca35a9499b58366d696d3290eaa4697a42db","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/usb/cdc_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.20","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.10","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0-rc5","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.317","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.285","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.245","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check\n\nThe same bounds-check bug fixed for NDP16 in the previous patch also\nexists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated\nagainst the total skb length without accounting for ndpoffset, allowing\nout-of-bounds reads when the NDP32 is placed near the end of the NTB.\n\nAdd ndpoffset to the nframes bounds check and use struct_size_t() to\nexpress the NDP-plus-DPE-array size more clearly.\n\nCompile-tested only."}],"providerMetadata":{"dateUpdated":"2026-04-03T15:15:30.495Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54"},{"url":"https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5"},{"url":"https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2"},{"url":"https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16"},{"url":"https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391"}],"title":"net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23447","datePublished":"2026-04-03T15:15:30.495Z","dateReserved":"2026-01-13T15:37:46.019Z","dateUpdated":"2026-04-03T15:15:30.495Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-03 16:16:30","lastModifiedDate":"2026-04-07 13:21:09","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23447","Ordinal":"1","Title":"net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check","CVE":"CVE-2026-23447","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23447","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check\n\nThe same bounds-check bug fixed for NDP16 in the previous patch also\nexists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated\nagainst the total skb length without accounting for ndpoffset, allowing\nout-of-bounds reads when the NDP32 is placed near the end of the NTB.\n\nAdd ndpoffset to the nframes bounds check and use struct_size_t() to\nexpress the NDP-plus-DPE-array size more clearly.\n\nCompile-tested only.","Type":"Description","Title":"net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check"}]}}}