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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":May 21, 2026, 6:01 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
Search
3391 8.1 重要
Adjacent 		Linux Linux Kernel LinuxのLinux Kernelにおける境界外読み取りに関する脆弱性 CWE-125
境界外読み取り 		CVE-2026-31513 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3392 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける不特定の脆弱性 CWE-noinfo
情報不足 		CVE-2026-31514 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3393 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux KernelにおけるNULL ポインタデリファレンスに関する脆弱性 CWE-476
NULL ポインタデリファレンス 		CVE-2026-31515 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3394 7.8 重要
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける競合状態に関する脆弱性 CWE-362
競合状態 		CVE-2026-31516 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3395 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける有効期限後のメモリの解放の欠如に関する脆弱性 CWE-401
有効期限後のメモリの解放の欠如 		CVE-2026-31517 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3396 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける有効期限後のメモリの解放の欠如に関する脆弱性 CWE-401
有効期限後のメモリの解放の欠如 		CVE-2026-31518 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3397 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux KernelにおけるNULL ポインタデリファレンスに関する脆弱性 CWE-476
NULL ポインタデリファレンス 		CVE-2026-31519 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3398 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける有効期限後のメモリの解放の欠如に関する脆弱性 CWE-401
有効期限後のメモリの解放の欠如 		CVE-2026-31520 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3399 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける境界外書き込みに関する脆弱性 CWE-787
境界外書き込み 		CVE-2026-31521 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
3400 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける有効期限後のメモリの解放の欠如に関する脆弱性 CWE-401
有効期限後のメモリの解放の欠如 		CVE-2026-31522 2026-04-30 11:06 2026-04-22 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 22, 2026, 4:08 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
341 9.3 CRITICAL
Network 		mozilla firefox
thunderbird 		Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. New CWE-346
 Origin Validation Error 		CVE-2026-8950 2026-05-21 00:00 2026-05-19 Show GitHub Exploit DB Packet Storm
342 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. New CWE-290
 Authentication Bypass by Spoofing 		CVE-2026-8963 2026-05-20 23:57 2026-05-19 Show GitHub Exploit DB Packet Storm
343 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. New CWE-451
 User Interface (UI) Misrepresentation of Critical Information 		CVE-2026-8964 2026-05-20 23:57 2026-05-19 Show GitHub Exploit DB Packet Storm
344 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. New CWE-400
 Uncontrolled Resource Consumption 		CVE-2026-8968 2026-05-20 23:56 2026-05-19 Show GitHub Exploit DB Packet Storm
345 8.1 HIGH
Network 		mozilla firefox
thunderbird 		Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. New CWE-693
 Protection Mechanism Failure 		CVE-2026-8969 2026-05-20 23:55 2026-05-19 Show GitHub Exploit DB Packet Storm
346 9.1 CRITICAL
Network 		mozilla firefox
thunderbird 		Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. New CWE-942
 Permissive Cross-domain Policy with Untrusted Domains 		CVE-2026-8948 2026-05-20 23:53 2026-05-19 Show GitHub Exploit DB Packet Storm
347 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. New CWE-190
 Integer Overflow or Wraparound 		CVE-2026-8949 2026-05-20 23:49 2026-05-19 Show GitHub Exploit DB Packet Storm
348 6.5 MEDIUM
Network 		mozilla firefox Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151. New CWE-290
 Authentication Bypass by Spoofing 		CVE-2026-8951 2026-05-20 23:48 2026-05-19 Show GitHub Exploit DB Packet Storm
349 6.5 MEDIUM
Network 		mozilla firefox
thunderbird 		Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. New CWE-346
 Origin Validation Error 		CVE-2026-8971 2026-05-20 23:41 2026-05-19 Show GitHub Exploit DB Packet Storm
350 9.8 CRITICAL
Network 		mozilla firefox
thunderbird 		Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. New CWE-190
 Integer Overflow or Wraparound 		CVE-2026-8956 2026-05-20 23:31 2026-05-19 Show GitHub Exploit DB Packet Storm