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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 1, 2026, 6 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
Search
256261 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
256262 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
256263 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
256264 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
256265 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
256266 9.3 危険 リアルネットワークス - Windows 上で稼働する RealNetworks RealPlayer の ParseKnownType 関数における整数オーバーフローの脆弱性 CWE-189
数値処理の問題 		CVE-2010-3000 2010-09-21 14:11 2010-08-26 Show GitHub Exploit DB Packet Storm
256267 9.3 危険 リアルネットワークス - Windows 上で稼働する RealNetworks RealPlayer の Internet Explorer プラグインにおける脆弱性 CWE-noinfo
情報不足 		CVE-2010-3001 2010-09-21 14:11 2010-08-26 Show GitHub Exploit DB Packet Storm
256268 9.3 危険 リアルネットワークス - Windows 上で稼働する RealNetworks RealPlayer における任意のコードを実行される脆弱性 CWE-119
バッファエラー 		CVE-2010-2996 2010-09-21 14:10 2010-08-26 Show GitHub Exploit DB Packet Storm
256269 9.3 危険 リアルネットワークス - Windows 上で稼働する RealNetworks RealPlayer 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-2010-0120 2010-09-17 15:56 2010-08-26 Show GitHub Exploit DB Packet Storm
256270 9.3 危険 リアルネットワークス - Windows 上で稼働する RealNetworks RealPlayer における任意のコードを実行される脆弱性 CWE-Other
その他 		CVE-2010-0117 2010-09-17 15:56 2010-08-26 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:June 1, 2026, 4:12 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
208051 6.5 MEDIUM
Network 		mozilla firefox
firefox_esr
thunderbird 		When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped… NVD-CWE-noinfo
CVE-2020-26961 2024-11-21 14:20 2020-12-9 Show GitHub Exploit DB Packet Storm
208052 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
208053 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
208054 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
208055 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
208056 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
208057 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
208058 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
208059 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
208060 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