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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
Search keywords must be entered in English otherwise will not be searched in both JVN and NVD.

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 21, 2026, 10 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
Search
258571 5 警告 Opera Software ASA - Opera の news-feed プレビュー機能における任意のフィードの購読を強制される脆弱性 CWE-264
認可・権限・アクセス制御 		CVE-2010-3020 2010-09-27 16:21 2010-08-12 Show GitHub Exploit DB Packet Storm
258572 9.3 危険 Opera Software ASA - Opera におけるヒープベースのバッファオーバーフローの脆弱性 CWE-119
バッファエラー 		CVE-2010-3019 2010-09-27 16:21 2010-08-12 Show GitHub Exploit DB Packet Storm
258573 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
258574 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
258575 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
258576 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
258577 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
258578 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
258579 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
258580 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
NVD Vulnerability Information

Update Date:June 21, 2026, 4:01 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
219371 6.5 MEDIUM
Network 		mozilla
canonical 		firefox
thunderbird
firefox_esr
ubuntu_linux 		When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become… CWE-295
Improper Certificate Validation  		CVE-2020-12421 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219372 8.8 HIGH
Network 		mozilla
canonical
opensuse 		firefox
thunderbird
firefox_esr
ubuntu_linux
leap 		When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects… CWE-362
CWE-416
Race Condition
 Use After Free 		CVE-2020-12420 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219373 8.8 HIGH
Network 		mozilla
canonical
opensuse 		firefox
firefox_esr
thunderbird
ubuntu_linux
leap 		When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a… CWE-416
 Use After Free 		CVE-2020-12419 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219374 6.5 MEDIUM
Network 		mozilla
canonical
opensuse 		firefox
firefox_esr
thunderbird
ubuntu_linux
leap 		Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, an… CWE-125
Out-of-bounds Read 		CVE-2020-12418 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219375 8.8 HIGH
Network 		mozilla
canonical
opensuse 		firefox
thunderbird
firefox_esr
ubuntu_linux
leap 		Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects… CWE-787
CWE-617
CWE-681
 Out-of-bounds Write
 Reachable Assertion
 Incorrect Conversion between Numeric Types 		CVE-2020-12417 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219376 8.8 HIGH
Network 		mozilla
opensuse 		firefox
leap 		A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulner… CWE-362
CWE-416
Race Condition
 Use After Free 		CVE-2020-12416 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219377 6.5 MEDIUM
Network 		mozilla
opensuse 		firefox
leap 		When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to ser… CWE-276
Incorrect Default Permissions  		CVE-2020-12415 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219378 6.5 MEDIUM
Network 		mozilla firefox IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted… CWE-459
 Incomplete Cleanup 		CVE-2020-12414 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219379 4.3 MEDIUM
Network 		mozilla firefox By navigating a tab using the history API, an attacker could cause the address bar to display the incorrect domain (with the https:// scheme, a blocked port number such as '1', and without a lock ico… NVD-CWE-Other
CVE-2020-12412 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm
219380 8.8 HIGH
Network 		mozilla firefox Mozilla developers reported memory safety bugs present in Firefox 76. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been expl… CWE-787
 Out-of-bounds Write 		CVE-2020-12411 2024-11-21 13:59 2020-07-10 Show GitHub Exploit DB Packet Storm