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CVE-2026-23447

nvd nist
Published: Apr 3, 2026Modified: Sep 14, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

Description

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.

Affected (15)

Products: Linux: Linux Kernel
1 product
Linux Kernel
Configuration A
15 vulnerable
Vulnerable SoftwareAffected Versions
Linux
4.14.317 ≤ version < 4.15
4.19.285 ≤ version < 4.20
5.4.245 ≤ version < 5.5
5.7.1 ≤ version < 6.6.130
6.13 ≤ version < 6.18.20
6.19 ≤ version < 6.19.10
6.7 ≤ version < 6.12.78
Version 5.7
Version 7.0 rc1
Version 7.0 rc2
Version 7.0 rc3
Version 7.0 rc4
Version 7.0 rc5
Version 7.0 rc6
Version 7.0 rc7

References (6)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

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