{"id":"CVE-2001-1245","aliases":["EUVD-2001-1226","GHSA-mqrg-295m-6r6c"],"status":"published","title":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote...","description":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.","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":0.02442,"percentile":0.8442,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-07-09T04:00:00Z","modified":"2026-06-16T21:55:53Z","products":[{"vendor":"opera_software","product":"opera_web_browser"}],"references":[{"url":"http://online.securityfocus.com/archive/1/196980","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/3012","tags":["vdb-entry","x_refsource_BID","x_transferred","Vendor Advisory"]},{"url":"http://www.iss.net/security_center/static/6838.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1245"},{"url":"https://github.com/advisories/GHSA-mqrg-295m-6r6c"}],"sources":{"cve":[{"id":"CVE-2001-1245","description":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.","status":"published","published":"2002-05-03T04:00:00Z","modified":"2024-08-08T04:51:08.171Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1226","description":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.","status":"published","published":"2002-05-03T04:00:00Z","modified":"2024-08-08T04:51:08Z","updated_at":"2026-11-03T00:56:28.268448Z"}],"ghsa":[{"id":"GHSA-mqrg-295m-6r6c","title":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote...","description":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.","status":"published","published":"2022-04-30T18:17:37Z","modified":"2023-01-30T05:05:49Z","updated_at":"2026-11-02T14:47:21.568004Z"}],"nvd":[{"id":"CVE-2001-1245","description":"Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.","status":"published","published":"2001-07-09T04:00:00Z","modified":"2026-06-16T21:55:53.183Z","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":"2026-11-02T14:00:40.041412Z"}]}}