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。
Assigner（CNA／発行元）：[email protected] この条件を外す
| CVE | 説明 | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|
| CVE-2026-4707 | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.58% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4706 | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.45% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4705 | Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.42% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4704 | Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.41% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4702 | JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.47% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4701 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.46% | 2026-03-24 | 2026-06-17 |
| CVE-2026-4700 | Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.46% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4699 | Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.69% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4698 | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.76% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4697 | Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.69% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4696 | Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.49% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4695 | Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.69% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4694 | Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.77% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4693 | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 7.5 | 0.69% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4692 | Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 10.0 | 0.49% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4691 | Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 9.8 | 0.49% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4690 | Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 8.6 | 0.77% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4689 | Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 10.0 | 0.68% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4688 | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 10.0 | 0.53% | 2026-03-24 | 2026-07-14 |
| CVE-2026-4687 | Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | 8.6 | 0.54% | 2026-03-24 | 2026-07-14 |