CVE-2025-39942 (GCVE-0-2025-39942)

Vulnerability from cvelistv5 – Published: 2025-10-04 07:31 – Updated: 2026-08-05 12:06
VLAI
Title
ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size This is inspired by the check for data_offset + data_length.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6854 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < 196a3a7676d726ee67621ea2bf3b7815ac2685b4 (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < d3cb3f209d35c44b7ee74f77ed27ebb28995b9ce (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < 9644798294c7287e65a7b26e35aa6d2ce3345bcc (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < c64b915bb3d9339adcae5db4be2c35ffbef5e615 (git)
Affected: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 , < e1868ba37fd27c6a68e31565402b154beaa65df0 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.154 , ≤ 6.1.* (semver)
Unaffected: 6.6.108 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.16.9 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.