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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 27, 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
4341 7.8 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		Windows OLE の特権の昇格の脆弱性 CWE-843
型の取り違え 		CVE-2026-26162 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4342 7.8 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		Windows カーネルの特権の昇格の脆弱性 CWE-415
二重解放 		CVE-2026-26163 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4343 7 重要
Local 		マイクロソフト Microsoft Windows 11 23h2
Microsoft Windows 11 26h1
Microsoft Windows Server 2025
Microsoft Windows 11 24h2
Microsoft Wind… 		Windows シェルの特権の昇格の脆弱性 CWE-416
解放済みメモリの使用 		CVE-2026-26165 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4344 7 重要
Local 		マイクロソフト Microsoft Windows 11 23h2
Microsoft Windows 11 26h1
Microsoft Windows Server 2025
Microsoft Windows 11 24h2
Microsoft Wind… 		Windows シェルの特権の昇格の脆弱性 CWE-415
二重解放 		CVE-2026-26166 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4345 7.8 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		Windows プッシュ通知の特権昇格の脆弱性 CWE-362
CWE-416
CVE-2026-26167 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4346 7.8 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		WinSock 用 Windows Ancillary Function Driver の特権の昇格の脆弱性 CWE-362
CWE-416
CVE-2026-26168 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4347 6.1 警告
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		Windows カーネル メモリの情報漏えいの脆弱性 CWE-126
バッファオーバーリード 		CVE-2026-26169 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4348 7.8 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		PowerShell の特権の昇格の脆弱性 CWE-20
不適切な入力確認 		CVE-2026-26170 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4349 7.8 重要
Local 		マイクロソフト Microsoft Windows 11 23h2
Microsoft Windows 11 26h1
Microsoft Windows 10 22h2
Microsoft Windows 10 21h2
Microsoft Windows&… 		Windows プッシュ通知の特権昇格の脆弱性 CWE-362
CWE-416
CVE-2026-26172 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
4350 7 重要
Local 		マイクロソフト Microsoft Windows Server 2019
Microsoft Windows 10 1607
Microsoft Windows Server 2016
Microsoft Windows 11 23h2
Microsoft … 		WinSock 用 Windows Ancillary Function Driver の特権の昇格の脆弱性 CWE-362
CWE-416
CWE-476
CVE-2026-26173 2026-04-27 10:51 2026-04-14 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 27, 2026, 4:52 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
1051 8.6 HIGH
Network 		mozilla firefox
thunderbird 		Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. CWE-668
CWE-693
 Exposure of Resource to Wrong Sphere
 Protection Mechanism Failure 		CVE-2026-8958 2026-05-21 00:01 2026-05-19 Show GitHub Exploit DB Packet Storm
1052 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. CWE-346
 Origin Validation Error 		CVE-2026-8950 2026-05-21 00:00 2026-05-19 Show GitHub Exploit DB Packet Storm
1053 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. CWE-290
 Authentication Bypass by Spoofing 		CVE-2026-8963 2026-05-20 23:57 2026-05-19 Show GitHub Exploit DB Packet Storm
1054 7.5 HIGH
Network 		mozilla firefox
thunderbird 		Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. 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
1055 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. CWE-400
 Uncontrolled Resource Consumption 		CVE-2026-8968 2026-05-20 23:56 2026-05-19 Show GitHub Exploit DB Packet Storm
1056 8.1 HIGH
Network 		mozilla firefox
thunderbird 		Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. CWE-693
 Protection Mechanism Failure 		CVE-2026-8969 2026-05-20 23:55 2026-05-19 Show GitHub Exploit DB Packet Storm
1057 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. 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
1058 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. CWE-190
 Integer Overflow or Wraparound 		CVE-2026-8949 2026-05-20 23:49 2026-05-19 Show GitHub Exploit DB Packet Storm
1059 6.5 MEDIUM
Network 		mozilla firefox Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151. CWE-290
 Authentication Bypass by Spoofing 		CVE-2026-8951 2026-05-20 23:48 2026-05-19 Show GitHub Exploit DB Packet Storm
1060 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. CWE-346
 Origin Validation Error 		CVE-2026-8971 2026-05-20 23:41 2026-05-19 Show GitHub Exploit DB Packet Storm