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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
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To search by CWE, please refer to the CWE Overview and check the CWE number.

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JVN Vulnerability Information

Update Date":May 4, 2026, 6 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
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252791 9.3 危険 Opera Software ASA - Windows および Mac OS X 上で稼働する Opera における任意のコードを実行される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-2666 2010-09-27 16:20 2010-06-21 Show GitHub Exploit DB Packet Storm
252792 4.3 警告 Opera Software ASA - Opera における URI の処理に関するクロスサイトスクリプティングの脆弱性\ CWE-79
クロスサイト・スクリプティング（XSS） 		CVE-2010-2665 2010-09-27 16:20 2010-06-21 Show GitHub Exploit DB Packet Storm
252793 4.3 警告 Opera Software ASA - Opera の HTML コンテンツにおけるサービス運用妨害 (DoS) の脆弱性 CWE-Other
その他 		CVE-2010-2664 2010-09-27 16:20 2010-07-1 Show GitHub Exploit DB Packet Storm
252794 4.3 警告 Opera Software ASA - Opera におけるサービス運用妨害 (DoS) の脆弱性 CWE-Other
その他 		CVE-2010-2663 2010-09-27 16:20 2010-07-1 Show GitHub Exploit DB Packet Storm
252795 4.3 警告 Opera Software ASA - Opera におけるポップアップブロッカーを回避される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-2662 2010-09-27 16:20 2010-07-1 Show GitHub Exploit DB Packet Storm
252796 4.3 警告 Opera Software ASA - Opera における重要な情報を取得される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-2661 2010-09-27 16:19 2010-06-21 Show GitHub Exploit DB Packet Storm
252797 4.3 警告 Opera Software ASA - Opera における IDN ドメインになりすまされる脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-2660 2010-09-27 16:19 2010-06-21 Show GitHub Exploit DB Packet Storm
252798 4.3 警告 Opera Software ASA - Opera における重要な情報を取得される脆弱性 CWE-200
情報漏えい 		CVE-2010-2659 2010-09-27 16:19 2010-03-2 Show GitHub Exploit DB Packet Storm
252799 4.3 警告 Opera Software ASA - Opera における任意のファイルのアップロードを誘発させられる脆弱性 CWE-20
不適切な入力確認 		CVE-2010-2658 2010-09-27 16:19 2010-07-1 Show GitHub Exploit DB Packet Storm
252800 9.3 危険 Opera Software ASA - Windows および Mac OS X 上で稼働する Opera における任意のコードを実行される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-2657 2010-09-27 16:18 2010-07-1 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 4, 2026, 4:06 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
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296961 - opera opera_browser Unspecified vulnerability in the DOM implementation in Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via unknown content on a web page, as demonstrated b… NVD-CWE-noinfo
CVE-2011-2627 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296962 - opera opera_browser Opera before 11.50 allows remote attackers to cause a denial of service (application crash) by using "injected script" to set the SRC attribute of an IFRAME element. CWE-399
 Resource Management Errors 		CVE-2011-2626 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296963 - opera opera_browser Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via a SELECT element that contains many OPTION elements. CWE-399
 Resource Management Errors 		CVE-2011-2625 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296964 - opera opera_browser Opera before 11.50 allows user-assisted remote attackers to cause a denial of service (application hang) via a large table, which is not properly handled during a print preview. CWE-399
 Resource Management Errors 		CVE-2011-2624 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296965 - opera opera_browser Unspecified vulnerability in the SVG BiDi implementation in Opera before 11.50 allows remote attackers to cause a denial of service (application crash or hang) via unknown vectors. NVD-CWE-noinfo
CVE-2011-2623 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296966 - opera opera_browser Unspecified vulnerability in the Web Workers implementation in Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via unknown vectors. NVD-CWE-noinfo
CVE-2011-2622 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296967 - opera opera_browser Unspecified vulnerability in Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via vectors related to form layout. NVD-CWE-noinfo
CVE-2011-2621 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296968 - opera opera_browser Unspecified vulnerability in Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via vectors involving SVG animation. NVD-CWE-noinfo
CVE-2011-2620 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296969 - opera opera_browser Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via a gradient with many stops, related to the implementation of CANVAS elements, SVG, and Cascading Style … CWE-399
 Resource Management Errors 		CVE-2011-2619 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm
296970 - opera opera_browser Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via web script that moves a (1) AUDIO element or (2) VIDEO element between windows. CWE-399
 Resource Management Errors 		CVE-2011-2618 2024-11-21 10:28 2011-07-1 Show GitHub Exploit DB Packet Storm