CVE-2026-23447

HIGH EPSS 2.9%
Published Apr 3, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-129

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥4.14.317  –  <4.15
linuxlinux_kernel*≥4.19.285  –  <4.20
linuxlinux_kernel*≥5.4.245  –  <5.5
linuxlinux_kernel*≥5.7.1  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.20
linuxlinux_kernel*≥6.19  –  <6.19.10
linuxlinux_kernel5.7any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16
    Patch