CVE-2026-23447

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-23447
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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54 Patch
https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391 Patch
https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2 Patch
https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5 Patch
https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.7:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
History

23 Apr 2026, 20:56

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:5.7:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-129
References () https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54 - () https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54 - Patch
References () https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391 - () https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391 - Patch
References () https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2 - () https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2 - Patch
References () https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5 - () https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5 - Patch
References () https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16 - () https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16 - Patch

03 Apr 2026, 16:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-03 16:16

Updated : 2026-04-23 20:56

NVD link : CVE-2026-23447

Mitre link : CVE-2026-23447

CVE.ORG link : CVE-2026-23447

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-129

Improper Validation of Array Index