{"id":"CVE-2007-4247","aliases":["EUVD-2007-4230","GHSA-2hpp-qjhq-6j6p"],"status":"published","title":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service ...","description":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service (NULL dereference and persistent application crash) via a malformed ICS file.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.14663,"percentile":0.96683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2007-08-08T23:00:00Z","modified":"2026-06-16T22:43:40Z","products":[{"vendor":"microsoft","product":"windows_vista"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/35802","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/475534/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://osvdb.org/46801","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securityfocus.com/bid/25201","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://securityreason.com/securityalert/3004","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"http://www.eleytt.com/advisories/eleytt_CALICS.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-4247"},{"url":"https://github.com/advisories/GHSA-2hpp-qjhq-6j6p"}],"sources":{"cve":[{"id":"CVE-2007-4247","description":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service (NULL dereference and persistent application crash) via a malformed ICS file.","status":"published","published":"2007-08-08T23:00:00Z","modified":"2024-08-07T14:46:39.418Z","updated_at":"2026-11-02T13:33:30.262137Z"}],"euvd":[{"id":"EUVD-2007-4230","description":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service (NULL dereference and persistent application crash) via a malformed ICS file.","status":"published","published":"2007-08-08T23:00:00Z","modified":"2024-08-07T14:46:39Z","updated_at":"2026-11-03T01:16:22.435667Z"}],"ghsa":[{"id":"GHSA-2hpp-qjhq-6j6p","title":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service ...","description":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service (NULL dereference and persistent application crash) via a malformed ICS file.","status":"published","published":"2022-05-01T18:21:50Z","modified":"2023-01-31T05:04:34Z","updated_at":"2026-11-02T14:48:41.545541Z"}],"nvd":[{"id":"CVE-2007-4247","description":"Windows Calendar on Microsoft Windows Vista allows remote attackers to cause a denial of service (NULL dereference and persistent application crash) via a malformed ICS file.","status":"published","published":"2007-08-08T23:17:00Z","modified":"2026-06-16T22:43:40.41Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:17.964611Z"}]}}