{
  "id": "CVE-2023-0386",
  "url": "https://spydr.io/cve/CVE-2023-0386",
  "published": "2023-03-22T21:15:18.090Z",
  "modified": "2026-06-17T05:25:25.427Z",
  "score": 7.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.0788,
  "epss_percentile": 0.94555,
  "exploited": true,
  "kev": {
    "added": "2025-06-17",
    "due": "2025-07-08",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Linux Kernel Improper Ownership Management Vulnerability",
    "notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a ; https://access.redhat.com/security/cve/cve-2023-0386 ; https://security.netapp.com/advisory/ntap-20230420-0004/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-0386"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "debian",
    "netapp",
    "canonical",
    "linux"
  ],
  "products": [
    "Kernel"
  ],
  "cwes": [
    "CWE-282"
  ],
  "description": "A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a",
      "tags": [
        "Broken Link",
        "Mailing List",
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20230420-0004/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.debian.org/security/2023/dsa-5402",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0386",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}