CVE-2026-63897 (GCVE-0-2026-63897)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-19 14:55
VLAI
Title
USB: serial: mct_u232: fix missing interrupt-in transfer sanity check
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix missing interrupt-in transfer sanity check Add the missing sanity check on the size of interrupt-in transfers to avoid parsing stale or uninitialised slab data (and leaking it to user space).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 82b48d70bced1ec8e5f676d1fd5eccc7a44dc418 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8b93ee5baeef6efabee2c3381907733ad2dbc883 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a093f3e0c03d25a86d747a655d4b9322ffb2ed87 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70bb9a2661d34b93a9b83cf83e2b76289a712ef0 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 631b8b7c456567f7a8d26f6fc354c8dd9cc9f832 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f06bcaba29707f060706483b2020d3cafbe98f9f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ed260b56bc9fc878e5dcbb866eab8af0688e0e67 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 245aba83e3c288e176ed037a1f6b618b09e92ed8 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.93 , ≤ 6.12.* (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "dateReserved": "2026-07-19T07:54:57.019Z",
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    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T21:02:42+00:00",
      "cve": "CVE-2026-63897",
      "id": "CVE-2026-63897",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: USB: serial: mct_u232: fix missing interrupt-in transfer sanity check",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63897.json",
      "version": "3"
    }
  }
}



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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.