This schema defines the structure of the National Vulnerability Database XML feed files version: 1.2. The elements and attribute in this document are described by xs:annotation tags. This file is kept at http://nvd.nist.gov/schema/nvdcve.xsd. The NVD XML feeds are available at http://nvd.nist.gov/download.cfm. Release Notes: Version 1.2: * CVSS version 2 scores and vectors have been added. Please see http://nvd.nist.gov/cvss.cfm?vectorinfo and http://www.first.org/cvss/cvss-guide.html for more information on how to interpret this data. The root element of the NVD CVE feed. Multiple "entry" child elements describe specific NVD CVE entries. The schema version number supported by the feed. The date the feed was generated. A CVE entry. Documents one CVE entry. The child elements should always appear in the sequence defined below. These elements are compatible with entry elements from the CVE XML feeds. Description wrapper tag, parent to any documented descriptions of this CVE entry. While the "desc" tag will always be present, there may be no "descript" child tags. Only one "descript" tag will exist for each description source (i.e. CVE, NVD, ...). A description of a CVE entry from the source indicated by the "source" attribute. Impact wrapper tag (may or may not be present). Only one "impact" tag will exist for each impact explanation source. Contains a specific impact explanation of this CVE entry from source indicated by the "source" attribute. Solution wrapper tag (may or may not be present). Only one "sol" tag will exist for each solution explanation source. Loss type tag (may or may not be present). Contains one loss type child for each loss type of this CVE entry. Potential loss types are: "avail" => availability "conf" => confidentiality "int" => integrity "sec_prot" => security protection Vulnerability type tag (may or may not be present). Contains one vulnerability type child for each vulnerability type of this CVE entry. Potential vulnerability types are: "access" => Access validation error "input" => Input validation error "design" => Design error "exception" => Exceptional condition error "env" => Environmental error "config" => Configuration error "race" => Race condition error "other" => other Vulnerability range tag (may or may not be present). Contains one vulnerability range child for each vulnerability range of this CVE entry. Potential vulnerability ranges are: "local" => Locally exploitable "local_network" => Local network exploitable "network" => Network exploitable "user_init" => User accesses attacker Reference wrapper tag (always present). External references to this CVE entry are contained within this tag. Individual reference to this CVE entry. Text is the name of this vulnerability at this particular reference. Attributes: "source" (required) => Name of reference source "url" (required) => hyperlink to reference "sig" => indicates this reference includes a tool signature "adv" => indicates this reference is a Security Advisory "patch" => indicates this reference includes a patch for this vulnerability Vulnerable software wrapper tag (may or may not be present). Software affected by this CVE entry are listed within this tag. CVE or CAN the full CVE name the sequence number from CVE name the NVD name (if it exists) the date this entry was discovered the date this entry was published the date this entry was last modified the entry's severity as determined by the NVD analysts: High, Medium, or Low indicates that this CVE entry has been rejected by CVE or NVD the CVSS Version Indicator Same as the CVSS_base_score to provide backwards compatability with the previous CVE XML feed format. This field is deprecated an may be removed at a future date. CVSS version 2 Base Score CVSS version 2 Impact Score CVSS version 2 Exploit Score the CVSS version 2 Vector string The source of the CVE description. Input validation error tag with one attribute for each input validation error type. Potential input validation error types are: "bound" => Boundary condition error "buffer" => Buffer overflow Contains a specific solution explanation of this CVE entry from source indicated by the "source" attribute. Security Protection tag with one attribute for each security protection type. Potential security protection types are: "admin" => gain administrative access "user" => gain user access "other" => other Product wrapper tag. Versions of this product that are affected by this vulnerability are listed within this tag. Attributes: "name" => Product name "vendor" => Vendor of this product Represents a version of this product that is affected by this vulnerability. Attributes: "num" => This version number "prev" => Indicates that versions previous to this version number are also affected by this vulnerability "edition" => Indicates the edition associated with the version number Defines date format for NVD. Dates follow the mask "yyyy-mm-dd" Restricts urls in NVD beyond the xs:anyURI restrictions. simpleType used for attributes that are only present when they are true. Such attributes appear only in the form attribute_name="1". simpleType used when scoring on a scale of 0-10, inclusive simpleType to describe the CVSS Base Vector