Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2698▼ 542 respecto a la semana anterior
Críticas / altas1273▼ 220 respecto a la semana anterior
Nueva explotación activa (KEV)4▼ 5 respecto a la semana anterior
Sin puntuar (sin CVSS)254▼ 248 respecto a la semana anterior
2087 resultados, ordenados por fecha de publicación (más recientes primero)
| CVE | Estado | Severidad | EPSS | Explotación activa | Tecnologías afectadas | Publicada ▼ | Modificada | Descripción |
|---|---|---|---|---|---|---|---|---|
| Analizada | Crítica (9.1) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Modificada | Alta (8.8) | 0.28% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Alta (7.5) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Analizada | Crítica (9.8) | 0.39% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Alta (7.5) | 0.36% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Analizada | Crítica (9.8) | 0.21% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Alta (7.5) | 0.32% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Modificada | Alta (8.8) | 0.30% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Modificada | Alta (8.8) | 0.30% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 1/9/2026 | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, Thunderbird 140.13, Firefox ESR 140.15, and Thunderbird 140.15. | |
| Analizada | Crítica (9.1) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Analizada | Crítica (9.8) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.39% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (10) | 0.38% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Modificada | Alta (8.8) | 0.27% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Modificada | Alta (8.8) | 0.28% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 1/9/2026 | Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153, Thunderbird 153, Firefox ESR 140.15, and Thunderbird 140.15. | |
| Analizada | Crítica (9.1) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | |
| Analizada | Crítica (9.8) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Alta (8.8) | 0.29% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.32% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Memory safety bugs present in Thunderbird ESR 140.12. 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 ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.47% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. 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 153, Firefox ESR 115.38, Firefox… | |
| Analizada | Crítica (9.1) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.22% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.40% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.39% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | |
| Analizada | Crítica (9.8) | 0.40% | — | Mozilla FirefoxMozilla Thunderbird | 21/7/2026 | 24/7/2026 | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. |