NVD や CVE、ほか複数の脅威フィードを束ね、RCE など高リスクな事象を深く追える一覧です。CVSS と EPSS を組み合わせ、Exploit 参照や PoC の有無から悪用しやすさを追跡します。ベンダー修正や緩和策の文脈とあわせて優先度を決め、対応サイクルを短く保ちつつ重要資産を守る支援をします。
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| CVE | 説明 | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|
| CVE-2026-13356 | A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3. | 6.3 | 0.15% | 2026-07-06 | 2026-07-08 |
| CVE-2026-57963 | An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1. | 6.5 | 0.19% | 2026-06-30 | 2026-07-06 |
| CVE-2026-14241 | Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4. | 9.8 | 0.23% | 2026-06-30 | 2026-07-06 |
| CVE-2026-53899 | Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0. | 6.5 | 0.10% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12328 | Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | 8.1 | 0.48% | 2026-06-16 | 2026-07-15 |
| CVE-2026-12327 | Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 8.1 | 0.41% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12326 | Memory safety bugs present in Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 8.1 | 0.29% | 2026-06-16 | 2026-07-14 |
| CVE-2026-12325 | Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | 6.5 | 0.24% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12324 | Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 7.3 | 0.22% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12319 | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 6.5 | 0.21% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12318 | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 7.3 | 0.26% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12317 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 7.5 | 0.31% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12316 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 9.1 | 0.24% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12315 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 9.1 | 0.28% | 2026-06-16 | 2026-06-17 |
| CVE-2026-12314 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 7.5 | 0.27% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12312 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 7.5 | 0.27% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12310 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 7.5 | 0.27% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12309 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 6.5 | 0.24% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12305 | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 7.5 | 0.40% | 2026-06-16 | 2026-06-18 |
| CVE-2026-12304 | 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. | 9.1 | 0.19% | 2026-06-16 | 2026-06-17 |