CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2026-23447
High (7.8) in linux linux kernel. EPSS 0.1% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check
The same bounds-check bug fixed for NDP16 in the previous patch also
exists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated
against the total skb length without accounting for ndpoffset, allowing
out-of-bounds reads when the NDP32 is placed near the end of the NTB.
Add ndpoffset to the nframes bounds check and use struct_size_t() to
express the NDP-plus-DPE-array size more clearly.
Compile-tested only.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-31)
- CWE
- CWE-129
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
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