Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2680▼ 660 respecto a la semana anterior
Críticas / altas1277▼ 279 respecto a la semana anterior
Nueva explotación activa (KEV)3▼ 5 respecto a la semana anterior
Sin puntuar (sin CVSS)228▼ 274 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 |
|---|---|---|---|---|---|---|---|---|
| Modificada | Crítica (9.8) | 0.61% | — | Mozilla FirefoxMozilla Thunderbird | 24/2/2026 | 15/7/2026 | Incorrect boundary conditions 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. | |
| Modificada | Crítica (9.8) | 0.60% | — | Mozilla FirefoxMozilla Thunderbird | 24/2/2026 | 15/7/2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| Modificada | Crítica (9.8) | 0.61% | — | Mozilla FirefoxMozilla Thunderbird | 24/2/2026 | 15/7/2026 | Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| Modificada | Crítica (9.8) | 0.47% | — | Mozilla Firefox | 24/2/2026 | 17/6/2026 | Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4. | |
| Modificada | Crítica (9.8) | 0.61% | — | Mozilla FirefoxMozilla Thunderbird | 24/2/2026 | 21/9/2026 | 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. | |
| Modificada | Alta (8.8) | 0.64% | — | Mozilla FirefoxMozilla Thunderbird | 16/2/2026 | 15/7/2026 | Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2. | |
| Modificada | Media (4.3) | 0.16% | — | Mozilla Firefox | 16/2/2026 | 17/6/2026 | Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in Firefox for iOS 147.2.1. | |
| Modificada | Media (4.3) | 0.18% | — | Mozilla Thunderbird | 28/1/2026 | 17/6/2026 | When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had… | |
| Modificada | Alta (8.8) | 0.27% | — | Mozilla Firefox | 27/1/2026 | 15/7/2026 | Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2. | |
| Modificada | Media (6.5) | 0.21% | — | Mozilla Firefox | 27/1/2026 | 17/6/2026 | Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2. | |
| Modificada | Crítica (9.8) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147. | |
| Modificada | Alta (8.1) | 0.48% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 147, Firefox ESR… | |
| Modificada | Media (5.4) | 0.30% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Alta (7.5) | 0.60% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Denial-of-service in the DOM: Service Workers component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | |
| Modificada | Media (5.3) | 0.35% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | |
| Modificada | Media (4.3) | 0.33% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Media (5.3) | 0.50% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Media (6.5) | 0.41% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Crítica (9.8) | 0.47% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Media (5.3) | 0.47% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 17/6/2026 | Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Alta (8.8) | 0.47% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Crítica (10) | 0.36% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | |
| Modificada | Alta (8.8) | 0.66% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Crítica (9.8) | 0.61% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | |
| Modificada | Alta (8) | 0.48% | — | Mozilla FirefoxMozilla Thunderbird | 13/1/2026 | 15/7/2026 | Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. |