{"id":"CVE-2009-2479","aliases":["EUVD-2009-2474","GHSA-7mgv-jg63-hvqh"],"status":"published","title":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of...","description":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.12089,"percentile":0.96173,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2009-07-16T15:00:00Z","modified":"2026-06-16T23:09:32Z","exploits":[{"source":"exploitdb","id":"EDB-9158","title":"Mozilla Firefox 3.5 - Unicode Remote Buffer Overflow (PoC)","type":"dos","platform":"windows","date":"2009-07-15","verified":true,"url":"https://www.exploit-db.com/exploits/9158"}],"products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"http://websecurity.com.ua/3338/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=504342","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00909.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://www.exploit-db.com/exploits/9158","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://blog.mozilla.com/security/2009/07/19/milw0rm-9158-stack-overflow-crash-not-exploitable-cve-2009-2479/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/505092/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securitytracker.com/id?1022580","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/bid/35707","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=504343","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://osvdb.org/55931","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/51729","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2479"},{"url":"http://blog.mozilla.com/security/2009/07/19/milw0rm-9158-stack-overflow-crash-not-exploitable-cve-2009-2479"},{"url":"http://websecurity.com.ua/3338"},{"url":"https://github.com/advisories/GHSA-7mgv-jg63-hvqh"}],"sources":{"cve":[{"id":"CVE-2009-2479","description":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.","status":"published","published":"2009-07-16T15:00:00Z","modified":"2024-08-07T05:52:14.838Z","updated_at":"2026-11-02T14:33:23.395558Z"}],"euvd":[{"id":"EUVD-2009-2474","description":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.","status":"published","published":"2009-07-16T15:00:00Z","modified":"2024-08-07T05:52:14Z","updated_at":"2026-11-03T01:39:17.521372Z"}],"ghsa":[{"id":"GHSA-7mgv-jg63-hvqh","title":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of...","description":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.","status":"published","published":"2022-05-02T03:35:38Z","modified":"2025-04-09T04:13:06Z","cwes":["CWE-119"],"updated_at":"2026-11-02T15:01:00.53445Z"}],"nvd":[{"id":"CVE-2009-2479","description":"Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.","status":"published","published":"2009-07-16T15:30:00.813Z","modified":"2026-06-16T23:09:32.383Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:36.200173Z"}]}}