{"id":"CVE-2009-2540","aliases":["EUVD-2009-2535","GHSA-whgj-f82x-p3xc"],"status":"published","title":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory...","description":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory consumption) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.","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":0.03052,"percentile":0.87662,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2009-07-20T18:00:00Z","modified":"2026-06-16T23:09:40Z","products":[{"vendor":"opera","product":"opera_browser"}],"references":[{"url":"http://www.g-sec.lu/one-bug-to-rule-them-all.html","tags":["x_refsource_MISC","x_transferred","Broken Link","Exploit"]},{"url":"http://www.securityfocus.com/archive/1/504988/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5957","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","Broken Link"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/52874","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/archive/1/505006/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.exploit-db.com/exploits/9160","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/archive/1/504969/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/archive/1/504989/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2540"},{"url":"https://github.com/advisories/GHSA-whgj-f82x-p3xc"}],"sources":{"cve":[{"id":"CVE-2009-2540","description":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory consumption) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.","status":"published","published":"2009-07-20T18:00:00Z","modified":"2024-08-07T05:52:15.251Z","updated_at":"2026-11-02T14:33:23.395558Z"}],"euvd":[{"id":"EUVD-2009-2535","description":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory consumption) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.","status":"published","published":"2009-07-20T18:00:00Z","modified":"2024-08-07T05:52:15Z","updated_at":"2026-11-03T01:39:17.005545Z"}],"ghsa":[{"id":"GHSA-whgj-f82x-p3xc","title":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory...","description":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory consumption) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.","status":"published","published":"2022-05-02T03:36:10Z","modified":"2024-02-02T03:30:31Z","cwes":["CWE-770"],"updated_at":"2026-11-02T14:55:31.84746Z"}],"nvd":[{"id":"CVE-2009-2540","description":"Opera, possibly 9.64 and earlier, allows remote attackers to cause a denial of service (memory consumption) via a large integer value for the length property of a Select object, a related issue to CVE-2009-1692.","status":"published","published":"2009-07-20T18:30:01.233Z","modified":"2026-06-16T23:09:40.087Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:01:36.200173Z"}]}}