{"id":"CVE-2007-2161","aliases":["EUVD-2007-2156","GHSA-wr3m-ccvr-j929"],"status":"published","title":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang)...","description":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.","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":0.12278,"percentile":0.96212,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2007-04-22T19:00:00Z","modified":"2026-06-16T22:39:03Z","products":[{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://www.securityfocus.com/archive/1/466175/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/archive/1/466017/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/33715","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry"]},{"url":"http://osvdb.org/43314","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link"]},{"url":"http://www.securityfocus.com/archive/1/466043/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-2161"},{"url":"https://github.com/advisories/GHSA-wr3m-ccvr-j929"}],"sources":{"cve":[{"id":"CVE-2007-2161","description":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.","status":"published","published":"2007-04-22T19:00:00Z","modified":"2024-08-07T13:23:50.909Z","updated_at":"2026-11-02T13:32:23.14582Z"}],"euvd":[{"id":"EUVD-2007-2156","description":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.","status":"published","published":"2007-04-22T19:00:00Z","modified":"2024-08-07T13:23:50Z","updated_at":"2026-11-03T01:38:22.382978Z"}],"ghsa":[{"id":"GHSA-wr3m-ccvr-j929","title":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang)...","description":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.","status":"published","published":"2022-05-01T18:00:41Z","modified":"2023-01-31T05:03:35Z","updated_at":"2026-11-02T14:48:29.790939Z"}],"nvd":[{"id":"CVE-2007-2161","description":"Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.","status":"published","published":"2007-04-22T19:19:00Z","modified":"2026-06-16T22:39:03.263Z","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":"2026-11-02T14:01:14.732044Z"}]}}