{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-53381",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53381",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-18T13:33:26.234Z",
    "updatedAt": "2026-08-05T09:13:47.305Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "NFSD: fix leaked reference count of nfsd4_ssc_umount_item",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: fix leaked reference count of nfsd4_ssc_umount_item\n\nThe reference count of nfsd4_ssc_umount_item is not decremented\non error conditions. This prevents the laundromat from unmounting\nthe vfsmount of the source file.\n\nThis patch decrements the reference count of nfsd4_ssc_umount_item\non error.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a4bc287943f5695209ff36bdc89f17b48d68fae7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2da50149981d05955e51c28e982e9ac29bd73417"
            },
            {
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "80a15dc4a0214b55ca42675bb0bb2a8d857eb1d0"
            },
            {
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f0df37520a27ad99eaacf38418b3d2bb5023105"
            },
            {
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6c3c05402547aaca3edb23327b50f01a881831b9"
            },
            {
              "version": "f4e44b393389c77958f7c58bf4415032b4cda15b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34e8f9ec4c9ac235f917747b23a200a5e0ec857b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.14"
            },
            {
              "version": "5.15.154",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}