Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2743▼ 518 respecto a la semana anterior
Críticas / altas1293▼ 226 respecto a la semana anterior
Nueva explotación activa (KEV)3▼ 5 respecto a la semana anterior
Sin puntuar (sin CVSS)244▼ 258 respecto a la semana anterior
3953 resultados, ordenados por fecha de publicación (más recientes primero)
| CVE | Estado | Severidad | EPSS | Explotación activa | Tecnologías afectadas | Publicada ▼ | Modificada | Descripción |
|---|---|---|---|---|---|---|---|---|
| Analizada | Media (5.3) | 0.36% | 💥 PoC | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Media (6.5) | 0.40% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Media (6.5) | 0.32% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Media (6.3) | 0.28% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Alta (8.8) | 0.41% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Crítica (9.8) | 0.51% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | |
| Analizada | Alta (7.5) | 0.52% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Alta (7.5) | 0.50% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | |
| Analizada | Media (6.3) | 0.28% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Analizada | Alta (7.5) | 0.39% | — | Mozilla Firefox | 21/4/2026 | 17/6/2026 | Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150. | |
| Analizada | Media (6.5) | 0.25% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 17/6/2026 | Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | |
| Modificada | Alta (7.5) | 0.58% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.3) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.3) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.3) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (8.8) | 0.59% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.5) | 0.60% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Crítica (9.8) | 0.60% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.5) | 0.58% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Alta (7.5) | 0.58% | — | Mozilla FirefoxMozilla Thunderbird | 21/4/2026 | 15/7/2026 | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | |
| Modificada | Media (5.1) | 0.16% | — | Mozilla Thin-vec | 20/4/2026 | 15/7/2026 | Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skips setting the length to zero. | |
| Modificada | Crítica (9.8) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 7/4/2026 | 15/7/2026 | Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. 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 149.0.2 and Thunderbird 149.0.2. | |
| Modificada | Crítica (9.8) | 0.59% | — | Mozilla FirefoxMozilla Thunderbird | 7/4/2026 | 15/7/2026 | Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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… | |
| Modificada | Alta (8.8) | 0.46% | — | Mozilla Firefox | 7/4/2026 | 15/7/2026 | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2. | |
| Modificada | Alta (8.8) | 0.66% | — | Mozilla Firefox | 7/4/2026 | 15/7/2026 | Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. |