{"id":"CVE-2010-0220","aliases":["EUVD-2010-0251","GHSA-35p6-jmhj-fg2v"],"status":"published","title":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox...","description":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.","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":0.01464,"percentile":0.73814,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2010-01-07T19:00:00Z","modified":"2026-06-16T23:15:44Z","products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"http://isc.sans.org/diary.html?storyid=7897","tags":["x_refsource_MISC","x_transferred","Patch"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2010:000","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/55550","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://hg.mozilla.org/mozilla-central/rev/51396f6c9f20","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8292","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.mozilla.com/en-US/firefox/3.5.7/releasenotes/","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=507114","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-0220"},{"url":"http://www.mozilla.com/en-US/firefox/3.5.7/releasenotes"},{"url":"https://github.com/advisories/GHSA-35p6-jmhj-fg2v"}],"sources":{"cve":[{"id":"CVE-2010-0220","description":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.","status":"published","published":"2010-01-07T19:00:00Z","modified":"2024-08-07T00:45:11.278Z","updated_at":"2026-11-02T14:33:29.990758Z"}],"euvd":[{"id":"EUVD-2010-0251","description":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.","status":"published","published":"2010-01-07T19:00:00Z","modified":"2024-08-07T00:45:11Z","updated_at":"2026-11-03T01:39:46.213752Z"}],"ghsa":[{"id":"GHSA-35p6-jmhj-fg2v","title":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox...","description":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.","status":"published","published":"2022-05-02T06:10:59Z","modified":"2025-04-09T04:18:00Z","updated_at":"2026-11-02T15:01:01.61975Z"}],"nvd":[{"id":"CVE-2010-0220","description":"The nsObserverList::FillObserverArray function in xpcom/ds/nsObserverList.cpp in Mozilla Firefox before 3.5.7 allows remote attackers to cause a denial of service (application crash) via a crafted web site that triggers memory consumption and an accompanying Low Memory alert dialog, and also triggers attempted removal of an observer from an empty observers array.","status":"published","published":"2010-01-07T19:30:00.403Z","modified":"2026-06-16T23:15:44.137Z","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":"2026-11-02T14:01:40.249593Z"}]}}