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-2026-2789 | Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.32% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2788 | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.42% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2787 | Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.40% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2786 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.31% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2785 | Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.37% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2784 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.43% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2783 | Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 7.5 | 0.29% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2782 | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.28% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2781 | Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35. | 9.8 | 0.36% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2780 | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.34% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2779 | Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.60% | 2026-02-24 | 2026-06-17 |
| CVE-2026-2778 | Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 10.0 | 0.49% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2777 | Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.37% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2776 | Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 10.0 | 0.49% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2775 | Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.57% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2774 | Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.54% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2773 | Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.62% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2772 | Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.47% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2771 | Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.49% | 2026-02-24 | 2026-07-14 |
| CVE-2026-2770 | Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | 9.8 | 0.47% | 2026-02-24 | 2026-07-14 |