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CVE-2001-0063

Status: ModifiedHigh (7.2)—

procfs in FreeBSD and possibly other operating systems allows local users to bypass access control restrictions for a jail environment and gain additional privileges.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Freebsd — Freebsd

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2001-0063",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2001-02-12T05:00:00.000",
  "references": [
    {
      "url": "ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:77.procfs.v1.1.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/1691",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/2132",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6108",
      "source": "cve@mitre.org"
    },
    {
      "url": "ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:77.procfs.v1.1.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/1691",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/2132",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6108",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "procfs in FreeBSD and possibly other operating systems allows local users to bypass access control restrictions for a jail environment and gain additional privileges."
    }
  ],
  "lastModified": "2026-06-16T21:53:35.173",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.5.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C283AD7-1C58-4CE8-A6CD-502FFE0B18BB"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AE31DFF8-06AB-489D-A0C5-509C090283B5"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3BE1E3D8-2BB1-4FFA-9BC9-7AF347D26190"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DF49BF03-C25E-4737-84D5-892895C86C58"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}