{"id":"CVE-2001-1421","aliases":["EUVD-2001-1401","GHSA-w827-crcv-xp2x"],"status":"published","title":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service ...","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02424,"percentile":0.84299,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-10-06T04:00:00Z","modified":"2026-06-16T21:56:14Z","products":[{"vendor":"aol","product":"instant_messenger"}],"references":[{"url":"http://www.kb.cert.org/vuls/id/JARL-569MD7","tags":["x_refsource_CONFIRM","x_transferred","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/3756","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/218920","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7757","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/530299","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://www.securityfocus.com/archive/1/247707","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1421"},{"url":"https://github.com/advisories/GHSA-w827-crcv-xp2x"}],"sources":{"cve":[{"id":"CVE-2001-1421","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","status":"published","published":"2005-03-20T05:00:00Z","modified":"2024-08-08T04:58:11.401Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1401","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","status":"published","published":"2005-03-20T05:00:00Z","modified":"2024-08-08T04:58:11Z","updated_at":"2026-11-03T00:56:27.761833Z"}],"ghsa":[{"id":"GHSA-w827-crcv-xp2x","title":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service ...","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","status":"published","published":"2022-04-30T18:18:01Z","modified":"2023-01-30T05:05:51Z","updated_at":"2026-11-02T14:47:22.035472Z"}],"nvd":[{"id":"CVE-2001-1421","description":"AOL Instant Messenger (AIM) 4.7 and earlier allows remote attackers to cause a denial of service (application crash) via a large number of different fonts followed by an HTML HR tag.","status":"published","published":"2001-10-06T04:00:00Z","modified":"2026-06-16T21:56:14.5Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.572315Z"}]}}