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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 18, 2026, 6 p.m.

No CVSS Level
Attach Vector
Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
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Exploit
PoC
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258611 6.8 警告 Opera Software ASA - Opera における任意の Web スクリプトを実行される脆弱性 CWE-287
不適切な認証
CVE-2009-2063 2010-09-27 16:10 2009-06-15 Show GitHub Exploit DB Packet Storm
258612 6.8 警告 Opera Software ASA - Opera における任意の Web スクリプトを実行される脆弱性 CWE-287
不適切な認証
CVE-2009-2059 2010-09-27 16:10 2009-06-15 Show GitHub Exploit DB Packet Storm
258613 9.3 危険 アドビシステムズ
Opera Software ASA
- Opera における Adobe Acrobat の JavaScript の制限を回避される脆弱性 CWE-264
認可・権限・アクセス制御
CVE-2009-1599 2010-09-27 16:09 2009-05-11 Show GitHub Exploit DB Packet Storm
258614 5 警告 Opera Software ASA - Opera におけるサービス運用妨害 (DoS) の脆弱性 CWE-399
リソース管理の問題
CVE-2008-7245 2010-09-27 16:09 2009-09-18 Show GitHub Exploit DB Packet Storm
258615 9.3 危険 Opera Software ASA - Windows 上で稼働する 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-2008-5178 2010-09-27 16:09 2008-11-20 Show GitHub Exploit DB Packet Storm
258616 10 危険 Opera Software ASA - Opera における脆弱性 CWE-noinfo
情報不足
CVE-2009-0916 2010-09-27 16:08 2009-03-3 Show GitHub Exploit DB Packet Storm
258617 4.3 警告 Opera Software ASA - Windows 上で稼働する Opera におけるサービス運用妨害 (DoS) の脆弱性 CWE-399
リソース管理の問題
CVE-2008-5428 2010-09-27 16:07 2008-12-11 Show GitHub Exploit DB Packet Storm
258618 4.3 警告 Opera Software ASA - Opera の Opera.dll におけ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-2008-4725 2010-09-27 16:07 2008-10-23 Show GitHub Exploit DB Packet Storm
258619 5.8 警告 Opera Software ASA - Opera における新規フィードの購読を作成される脆弱性 CWE-264
認可・権限・アクセス制御
CVE-2008-4698 2010-09-27 16:05 2008-10-23 Show GitHub Exploit DB Packet Storm
258620 10 危険 Opera Software ASA - Windows 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-noinfo
情報不足
CVE-2008-4293 2010-09-27 16:05 2008-09-27 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:June 19, 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
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211991 8.8 HIGH
Network
mozilla firefox
firefox_esr
thunderbird
If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerabili… CWE-416
 Use After Free
CVE-2020-26960 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211992 8.8 HIGH
Network
mozilla firefox
firefox_esr
thunderbird
During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerabil… CWE-416
 Use After Free
CVE-2020-26959 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211993 6.1 MEDIUM
Network
mozilla firefox
firefox_esr
thunderbird
Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerabili… CWE-79
Cross-site Scripting
CVE-2020-26958 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211994 6.5 MEDIUM
Network
mozilla firefox OneCRL was non-functional in the new Firefox for Android due to a missing service initialization. This could result in a failure to enforce some certificate revocations. *Note: This issue only affect… CWE-665
 Improper Initialization
CVE-2020-26957 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211995 6.1 MEDIUM
Network
mozilla firefox
firefox_esr
thunderbird
In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbir… CWE-79
Cross-site Scripting
CVE-2020-26956 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211996 6.5 MEDIUM
Network
mozilla firefox When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original… CWE-565
 Reliance on Cookies without Validation and Integrity Checking
CVE-2020-26955 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211997 4.3 MEDIUM
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… NVD-CWE-Other
CVE-2020-26954 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211998 4.3 MEDIUM
Network
mozilla firefox
firefox_esr
thunderbird
It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerabilit… CWE-1021
 Improper Restriction of Rendered UI Layers or Frames
CVE-2020-26953 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
211999 8.8 HIGH
Network
mozilla firefox Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handling out-of-memory errors. This vulnerability affect… CWE-787
 Out-of-bounds Write
CVE-2020-26952 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
212000 6.1 MEDIUM
Network
mozilla firefox
firefox_esr
thunderbird
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privilege… CWE-79
Cross-site Scripting
CVE-2020-26951 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm