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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":June 18, 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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258631 5 警告 Opera Software ASA - Opera における信頼されたフレームのコンテンツを偽装される脆弱性 CWE-DesignError
CVE-2008-2716 2010-09-27 16:00 2008-06-16 Show GitHub Exploit DB Packet Storm
258632 5 警告 Opera Software ASA - Opera におけるクロスドメインの脆弱性 CWE-200
情報漏えい 		CVE-2008-2715 2010-09-27 16:00 2008-06-16 Show GitHub Exploit DB Packet Storm
258633 5 警告 Opera Software ASA - Opera における Web ページのアドレスを偽装される脆弱性 CWE-DesignError
CVE-2008-2714 2010-09-27 15:59 2008-06-16 Show GitHub Exploit DB Packet Storm
258634 9.3 危険 Opera Software ASA - Opera におけるパスワード入力時のキーボードハンドリングの処理に関する脆弱性 CWE-noinfo
情報不足 		CVE-2008-1764 2010-09-27 15:59 2008-04-12 Show GitHub Exploit DB Packet Storm
258635 9.3 危険 Opera Software ASA - Opera における任意のコードを実行される脆弱性 CWE-399
リソース管理の問題 		CVE-2008-1762 2010-09-27 15:58 2008-04-12 Show GitHub Exploit DB Packet Storm
258636 9.3 危険 Opera Software ASA - Opera における任意のコードを実行される脆弱性 CWE-399
リソース管理の問題 		CVE-2008-1761 2010-09-27 15:58 2008-04-12 Show GitHub Exploit DB Packet Storm
258637 4.3 警告 Opera Software ASA - Opera におけるクロスサイトスクリプティングを誘導される脆弱性 CWE-79
クロスサイト・スクリプティング（XSS） 		CVE-2008-1082 2010-09-27 15:57 2008-02-29 Show GitHub Exploit DB Packet Storm
258638 6.8 警告 Opera Software ASA - Opera における任意のスクリプトを実行される脆弱性 CWE-94
コード・インジェクション 		CVE-2008-1081 2010-09-27 15:57 2008-02-29 Show GitHub Exploit DB Packet Storm
258639 6.8 警告 Opera Software ASA - Opera における任意のファイルを読まれる脆弱性 CWE-20
不適切な入力確認 		CVE-2008-1080 2010-09-27 15:55 2008-02-29 Show GitHub Exploit DB Packet Storm
258640 9.3 危険 リアルネットワークス - RealNetworks RealPlayer におけるファイルのアクセス制限を回避される脆弱性 CWE-noinfo
情報不足 		CVE-2010-3002 2010-09-21 14:11 2010-08-26 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:June 18, 2026, 4 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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198741 5.3 MEDIUM
Network 		mozilla firefox Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories. Note: This issue is only affected… CWE-367
 Time-of-check Time-of-use (TOCTOU) Race Condition 		CVE-2021-23977 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198742 4.3 MEDIUM
Network 		mozilla firefox When sharing geolocation during an active WebRTC share, Firefox could have reset the webRTC sharing state in the user interface, leading to loss of control over the currently granted permission. This… CWE-281
 Improper Preservation of Permissions 		CVE-2021-23963 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198743 8.8 HIGH
Network 		mozilla firefox Incorrect use of the '<RowCountChanged>' method could have led to a user-after-poison and a potentially exploitable crash. This vulnerability affects Firefox < 85. NVD-CWE-noinfo
CVE-2021-23962 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198744 7.4 HIGH
Network 		mozilla
debian 		firefox
debian_linux 		Further techniques that built on the slipstream research combined with a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine.… NVD-CWE-noinfo
CVE-2021-23961 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198745 8.8 HIGH
Network 		mozilla firefox
firefox_esr
thunderbird 		Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, an… NVD-CWE-noinfo
CVE-2021-23960 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198746 6.1 MEDIUM
Network 		mozilla firefox An XSS bug in internal error pages could have led to various spoofing attacks, including other error pages and the address bar. Note: This issue only affected Firefox for Android. Other operating sys… CWE-79
Cross-site Scripting 		CVE-2021-23959 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198747 6.5 MEDIUM
Network 		mozilla firefox The browser could have been confused into transferring a screen sharing state into another tab, which would leak unintended information. This vulnerability affects Firefox < 85. CWE-668
 Exposure of Resource to Wrong Sphere 		CVE-2021-23958 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198748 7.4 HIGH
Network 		mozilla firefox Navigations through the Android-specific `intent` URL scheme could have been misused to escape iframe sandbox. Note: This issue only affected Firefox for Android. Other operating systems are unaffect… NVD-CWE-noinfo
CVE-2021-23957 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198749 6.5 MEDIUM
Network 		mozilla firefox An ambiguous file picker design could have confused users who intended to select and upload a single file into uploading a whole directory. This was addressed by adding a new prompt. This vulnerabili… NVD-CWE-noinfo
CVE-2021-23956 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198750 6.1 MEDIUM
Network 		mozilla firefox The browser could have been confused into transferring a pointer lock state into another tab, which could have lead to clickjacking attacks. This vulnerability affects Firefox < 85. CWE-1021
 Improper Restriction of Rendered UI Layers or Frames 		CVE-2021-23955 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm