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CVE-2022-50235 (GCVE-0-2022-50235)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:01 – Updated: 2026-08-05 08:57
VLAI
Title
NFSD: Protect against send buffer overflow in NFSv2 READDIR
Summary
In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READDIR Restore the previous limit on the @count argument to prevent a buffer overflow attack.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9e291a6a28d32545ed2fd959a8165144d1724df1 , < 0e57d696f60dee6117a8ace0cac7c5761d375277 (git)
Affected: eabc0aab98e5218ceecd82069b0d6fdfff5ee885 , < dc7f225090c29a5f3b9419b1af32846a201555e7 (git)
Affected: 53b1119a6e5028b125f431a0116ba73510d82a72 , < c2a878095b5c6f04f90553a3c45872f990dab14e (git)
Affected: 53b1119a6e5028b125f431a0116ba73510d82a72 , < f59c74df82f6ac9d2ea4e01aa3ae7c6c4481652d (git)
Affected: 53b1119a6e5028b125f431a0116ba73510d82a72 , < 00b4492686e0497fdb924a9d4c8f6f99377e176c (git)
Affected: 5.15.12 , < 5.15.75 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:41:12+00:00",
      "cve": "CVE-2022-50235",
      "id": "CVE-2022-50235",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "441",
      "product_status:known_affected": "52",
      "product_status:known_not_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: NFSD: Protect against send buffer overflow in NFSv2 READDIR",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50235.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.