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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 22, 2026, 10 a.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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258591 5 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-2010-1310 2010-09-27 16:16 2010-03-22 Show GitHub Exploit DB Packet Storm
258592 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-2010-0653 2010-09-27 16:16 2010-02-18 Show GitHub Exploit DB Packet Storm
258593 10 危険 Opera Software ASA - Opera における脆弱性 CWE-noinfo
情報不足 		CVE-2009-4072 2010-09-27 16:16 2009-11-23 Show GitHub Exploit DB Packet Storm
258594 5.8 警告 Opera Software ASA - Opera におけるクロスサイトスクリプティングの脆弱性 CWE-16
環境設定 		CVE-2009-4071 2010-09-27 16:16 2009-11-24 Show GitHub Exploit DB Packet Storm
258595 5.8 警告 Opera Software ASA - Windows 上で稼働する Opera におけるアドレスフィールドを偽装される脆弱性 CWE-20
不適切な入力確認 		CVE-2009-3832 2010-09-27 16:16 2009-10-28 Show GitHub Exploit DB Packet Storm
258596 5 警告 Opera Software ASA - Opera におけるフィッシング攻撃の脆弱性 CWE-Other
その他 		CVE-2009-3049 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
258597 4.3 警告 Opera Software ASA - Opera における意図しないファイルをアップロードさせられる脆弱性 CWE-20
不適切な入力確認 		CVE-2009-3048 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
258598 4.3 警告 Opera Software ASA - Opera における URL を偽装される脆弱性 CWE-Other
その他 		CVE-2009-3047 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
258599 5 警告 Opera Software ASA - Opera における証明書チェーンの有効性を回避される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2009-3046 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
258600 5 警告 Opera Software ASA - Opera における任意の SSL サーバになりすまされる脆弱性 CWE-310
暗号の問題 		CVE-2009-3045 2010-09-27 16:15 2009-09-1 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:June 22, 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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198751 8.8 HIGH
Network 		mozilla firefox
firefox_esr
thunderbird 		Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability … CWE-843
Type Confusion 		CVE-2021-23954 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198752 4.3 MEDIUM
Network 		mozilla firefox
firefox_esr
thunderbird 		If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects … NVD-CWE-noinfo
CVE-2021-23953 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198753 8.1 HIGH
Network 		mozilla firefox When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be u… CWE-1021
 Improper Restriction of Rendered UI Layers or Frames 		CVE-2021-23976 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198754 6.5 MEDIUM
Network 		mozilla firefox The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof funct… CWE-862
 Missing Authorization 		CVE-2021-23975 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198755 6.1 MEDIUM
Network 		mozilla firefox The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86. NVD-CWE-noinfo
CVE-2021-23974 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198756 6.5 MEDIUM
Network 		mozilla
debian 		firefox
firefox_esr
thunderbird
debian_linux 		When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerab… CWE-209
Information Exposure Through an Error Message 		CVE-2021-23973 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198757 8.8 HIGH
Network 		mozilla firefox One phishing tactic on the web is to provide a link with HTTP Auth. For example 'https://www.phishingtarget.com@evil.com'. To mitigate this type of attack, Firefox will display a warning dialog; howe… NVD-CWE-noinfo
CVE-2021-23972 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198758 6.5 MEDIUM
Network 		mozilla firefox When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the… NVD-CWE-noinfo
CVE-2021-23971 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198759 6.5 MEDIUM
Network 		mozilla firefox Context-specific code was included in a shared jump table; resulting in assertions being triggered in multithreaded wasm code. This vulnerability affects Firefox < 86. CWE-617
 Reachable Assertion 		CVE-2021-23970 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm
198760 4.3 MEDIUM
Network 		mozilla
debian 		firefox
firefox_esr
thunderbird
debian_linux 		As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s no… NVD-CWE-noinfo
CVE-2021-23969 2024-11-21 14:52 2021-02-26 Show GitHub Exploit DB Packet Storm