{"cve":"CVE-2026-23447","nvd":{"published":"2026-04-03T16:16:30.663","modified":"2026-09-14T12:17:39.423","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-129"],"references":["https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54","https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391","https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2","https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5","https://git.kernel.org/stable/c/baf246d6680befde2086b1df9eb3aaba3fb6853f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-23447","score":0.00134,"percentile":0.02911,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}