CVE-2026-23447 (GCVE-0-2026-23447)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-05-23 16:04
VLAI?
Title
net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check
Summary
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 ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0fa81b304a7973a499f844176ca031109487dd31 , < 125f932a76a97904ef8a555f1dd53e5d0e288c54 (git)
Affected: 0fa81b304a7973a499f844176ca031109487dd31 , < af0d1613d6751489dbf9f69aac1123f0b1e566e5 (git)
Affected: 0fa81b304a7973a499f844176ca031109487dd31 , < a5bd5a2710310c965ea4153cba4210988a3454e2 (git)
Affected: 0fa81b304a7973a499f844176ca031109487dd31 , < de70da1fb1d152e981ecb3157f7ec2b633005c16 (git)
Affected: 0fa81b304a7973a499f844176ca031109487dd31 , < 77914255155e68a20aa41175edeecf8121dac391 (git)
Affected: 8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7 (git)
Affected: 4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6 (git)
Affected: a270ca35a9499b58366d696d3290eaa4697a42db (git)
Affected: 4.14.317 , < 4.15 (semver)
Affected: 4.19.285 , < 4.20 (semver)
Affected: 5.4.245 , < 5.5 (semver)
Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.