Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas3007▼ 67 respecto a la semana anterior
Críticas / altas1403▲ 50 respecto a la semana anterior
Nueva explotación activa (KEV)5▼ 3 respecto a la semana anterior
Sin puntuar (sin CVSS)390▼ 120 respecto a la semana anterior
3952 resultados, ordenados por fecha de publicación (más recientes primero)
| CVE | Estado | Severidad | EPSS | Explotación activa | Tecnologías afectadas | Publicada ▼ | Modificada | Descripción |
|---|---|---|---|---|---|---|---|---|
| En análisis | Sin puntuar | — | — | Mozilla FirefoxAI | 6/10/2026 | 6/10/2026 | Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1. | |
| En análisis | Sin puntuar | 0.21% | — | Mozilla ThunderbirdAI | 30/9/2026 | 30/9/2026 | An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4. | |
| Analizada | Media (4.3) | 0.20% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | |
| Analizada | Alta (8.8) | 0.24% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4, Firefox ESR 115.42, and Firefox ESR 140.17. | |
| En análisis | Alta (8.8) | 0.25% | — | Mozilla FirefoxAI | 29/9/2026 | 30/9/2026 | Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Alta (8.1) | 0.15% | — | Mozilla FirefoxAI | 29/9/2026 | 1/10/2026 | Mitigation bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Crítica (9.6) | 0.27% | — | Mozilla FirefoxAI | 29/9/2026 | 1/10/2026 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Crítica (9.6) | 0.27% | — | Mozilla FirefoxAI | 29/9/2026 | 1/10/2026 | Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Media (6.5) | 0.23% | — | Mozilla FirefoxAI | 29/9/2026 | 30/9/2026 | Denial-of-service in the Storage: StorageManager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Alta (8.8) | 0.25% | — | Mozilla FirefoxAI | 29/9/2026 | 30/9/2026 | Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Alta (8.8) | 0.24% | — | Mozilla FirefoxAI | 29/9/2026 | 30/9/2026 | Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| Analizada | Media (5.4) | 0.15% | — | Mozilla Firefox Mobile | 29/9/2026 | 5/10/2026 | Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 157. | |
| En análisis | Media (5.4) | 0.24% | — | Mozilla FirefoxAI | 29/9/2026 | 30/9/2026 | Spoofing issue in the Networking: HTTP component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| En análisis | Media (4.7) | 0.15% | — | Mozilla FirefoxAIMozilla Firefox ESRAI | 29/9/2026 | 1/10/2026 | Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | |
| Analizada | Alta (8.8) | 0.23% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Privilege escalation in the Address Bar component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | |
| Analizada | Crítica (9.6) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | |
| Analizada | Crítica (9.6) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | |
| Analizada | Media (5.4) | 0.21% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 6/10/2026 | Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | |
| Analizada | Alta (8.1) | 0.15% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| Analizada | Alta (8.8) | 0.23% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| Analizada | Alta (8.8) | 0.24% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| Analizada | Alta (8.8) | 0.23% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | |
| Analizada | Media (6.5) | 0.27% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Denial-of-service in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | |
| Analizada | Crítica (9.6) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | |
| Analizada | Crítica (9.8) | 0.38% | — | Mozilla FirefoxMozilla Thunderbird | 29/9/2026 | 5/10/2026 | Other issue in the DevTools component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. |