{
  "id": "CVE-2014-6271",
  "url": "https://spydr.io/cve/CVE-2014-6271",
  "published": "2014-09-24T18:48:04.477Z",
  "modified": "2026-06-17T00:12:48.020Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99999,
  "epss_percentile": 0.99993,
  "exploited": true,
  "kev": {
    "added": "2022-01-28",
    "due": "2022-07-28",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2014-6271"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "gnu",
    "arista",
    "oracle",
    "qnap",
    "mageia",
    "redhat",
    "suse",
    "opensuse",
    "debian",
    "ibm"
  ],
  "products": [
    "gnu bash",
    "arista eos",
    "oracle linux",
    "qnap qts",
    "mageia",
    "redhat gluster storage server for on-premise",
    "redhat virtualization",
    "redhat enterprise linux",
    "redhat enterprise linux desktop",
    "redhat enterprise linux eus",
    "redhat enterprise linux for ibm z systems",
    "redhat enterprise linux for power big endian",
    "redhat enterprise linux for power big endian eus",
    "redhat enterprise linux for scientific computing",
    "redhat enterprise linux server",
    "redhat enterprise linux server aus",
    "redhat enterprise linux server from rhui",
    "redhat enterprise linux server tus",
    "redhat enterprise linux workstation",
    "suse studio onsite"
  ],
  "cwes": [
    "CWE-78"
  ],
  "description": "GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka \"ShellShock.\" NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://advisories.mageia.org/MGASA-2014-0388.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://jvn.jp/en/jp/JVN55667175/index.html",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2014-000126",
      "tags": [
        "Third Party Advisory",
        "VDB Entry",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lcamtuf.blogspot.com/2014/09/quick-notes-about-bash-bug-its-impact.html",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://linux.oracle.com/errata/ELSA-2014-1293.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://linux.oracle.com/errata/ELSA-2014-1294.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00028.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00029.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00034.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00037.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00040.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00044.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00049.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-10/msg00023.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2014-10/msg00025.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141216207813411&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141216668515282&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141235957116749&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141319209015420&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141330425327438&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141330468527613&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=141345648114150&w=2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2014-6271",
  "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."
    }
  ]
}
