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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 19, 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
3051 3.1 低
Network 		EMQX emqx EMQXのemqxにおける競合状態に関する脆弱性 CWE-362
競合状態 		CVE-2026-8741 2026-05-22 10:52 2026-05-17 Show GitHub Exploit DB Packet Storm
3052 9.1 緊急
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における過度に許容されるクロスドメインホワイトリストに関する脆弱性 CWE-942
過度に許容されるクロスドメインホワイトリスト 		CVE-2026-8948 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3053 7.5 重要
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における整数オーバーフローの脆弱性 CWE-190
整数オーバーフローまたはラップアラウンド 		CVE-2026-8949 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3054 9.3 緊急
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における同一生成元ポリシー違反に関する脆弱性 CWE-346
同一生成元ポリシー違反 		CVE-2026-8950 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3055 6.5 警告
Network 		Mozilla Foundation Mozilla Firefox Mozilla FoundationのMozilla Firefoxにおけるスプーフィングによる認証回避に関する脆弱性 CWE-290
スプーフィングによる認証回避 		CVE-2026-8951 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3056 8.8 重要
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における権限管理に関する脆弱性 CWE-269
不適切な権限管理 		CVE-2026-8952 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3057 8.8 重要
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における権限管理に関する脆弱性 CWE-269
不適切な権限管理 		CVE-2026-8955 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3058 9.8 緊急
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における整数オーバーフローの脆弱性 CWE-190
整数オーバーフローまたはラップアラウンド 		CVE-2026-8956 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3059 8.8 重要
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における権限管理に関する脆弱性 CWE-269
不適切な権限管理 		CVE-2026-8957 2026-05-22 10:52 2026-05-19 Show GitHub Exploit DB Packet Storm
3060 8.6 重要
Network 		Mozilla Foundation Mozilla Firefox
Mozilla Thunderbird 		Mozilla FoundationのMozilla Firefox等の複数製品における複数の脆弱性 CWE-668
CWE-693
CVE-2026-8958 2026-05-22 10:52 2026-05-19 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
Search
61 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12308 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
62 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12307 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
63 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12306 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
64 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12305 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
65 - - - Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12304 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
66 4.3 MEDIUM
Network 		- - Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. New CWE-125
Out-of-bounds Read 		CVE-2026-12303 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
67 - - - Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. New - CVE-2026-12302 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
68 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. New - CVE-2026-12301 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
69 - - - Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. New - CVE-2026-12300 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm
70 5.4 MEDIUM
Network 		- - JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. New CWE-843
Type Confusion 		CVE-2026-12299 2026-06-17 02:16 2026-06-16 Show GitHub Exploit DB Packet Storm