{"id":"CVE-2010-1987","aliases":["EUVD-2010-2006","GHSA-9gqx-f57m-x5j2"],"status":"published","title":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service ...","description":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.","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":"2026-11-09","score":0.01515,"percentile":0.74691,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2010-05-20T17:00:00Z","modified":"2026-06-16T23:19:43Z","products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/58762","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://osvdb.org/64790","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12013","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.exploit-db.com/exploits/12678","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.x90c.org/advisories/firefox_3.6.3_crash_advisory.txt","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://www.securityfocus.com/archive/1/511329/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-1987"},{"url":"https://github.com/advisories/GHSA-9gqx-f57m-x5j2"}],"sources":{"cve":[{"id":"CVE-2010-1987","description":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.","status":"published","published":"2010-05-20T17:00:00Z","modified":"2024-08-07T02:17:13.314Z","updated_at":"2026-11-02T14:33:29.227451Z"}],"euvd":[{"id":"EUVD-2010-2006","description":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.","status":"published","published":"2010-05-20T17:00:00Z","modified":"2024-08-07T02:17:13Z","updated_at":"2026-11-03T01:39:39.367115Z"}],"ghsa":[{"id":"GHSA-9gqx-f57m-x5j2","title":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service ...","description":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.","status":"published","published":"2022-05-14T02:44:55Z","modified":"2023-02-02T05:06:12Z","updated_at":"2026-11-02T14:52:15.564738Z"}],"nvd":[{"id":"CVE-2010-1987","description":"Mozilla Firefox 3.6.3 on Windows XP SP3 allows remote attackers to cause a denial of service (memory consumption, out-of-bounds read, and application crash) via JavaScript code that appends long strings to the content of a P element, and performs certain other string concatenation and substring operations, related to the DoubleWideCharMappedString class in USP10.dll and the gfxWindowsFontGroup::GetUnderlineOffset function in xul.dll, a different vulnerability than CVE-2009-1571.","status":"published","published":"2010-05-20T17:30:01.52Z","modified":"2026-06-16T23:19:43.22Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:45.97784Z"}]}}