Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2730▼ 551 respecto a la semana anterior
Críticas / altas1294▼ 234 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
2087 resultados, ordenados por fecha de publicación (más recientes primero)
| CVE | Estado | Severidad | EPSS | Explotación activa | Tecnologías afectadas | Publicada ▼ | Modificada | Descripción |
|---|---|---|---|---|---|---|---|---|
| Modificada | Alta (8) | 0.34% | — | Mozilla FirefoxMozilla Thunderbird | 9/12/2025 | 7/10/2026 | Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | |
| Modificada | Crítica (9.8) | 0.60% | 💥 PoC | Mozilla FirefoxMozilla Thunderbird | 9/12/2025 | 7/10/2026 | Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | |
| Modificada | Crítica (9.8) | 0.36% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | |
| Modificada | Crítica (9.8) | 0.35% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | |
| Modificada | Media (6.5) | 0.24% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | |
| Modificada | Alta (8.8) | 0.33% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR… | |
| Modificada | Alta (8.8) | 0.34% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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… | |
| Modificada | Alta (8.1) | 0.36% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | |
| Modificada | Media (6.1) | 0.27% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox… | |
| Modificada | Media (6.5) | 0.23% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | |
| Modificada | Crítica (9.8) | 0.42% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | |
| Modificada | Crítica (9.8) | 0.42% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | |
| Modificada | Crítica (9.8) | 0.51% | — | Mozilla FirefoxMozilla Thunderbird | 14/10/2025 | 17/6/2026 | Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | |
| Modificada | Alta (8.8) | 0.33% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 143, Firefox ESR… | |
| Modificada | Media (6.2) | 0.17% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Alta (8.1) | 0.35% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Spoofing issue in the Site Permissions component. This vulnerability was fixed in Firefox 143 and Thunderbird 143. | |
| Modificada | Alta (8.8) | 0.75% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Media (6.5) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Incorrect boundary conditions in the JavaScript: GC component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Media (5.4) | 0.27% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Mitigation bypass in the Web Compatibility: Tooling component. This vulnerability was fixed in Firefox 143 and Thunderbird 143. | |
| Modificada | Media (6.5) | 0.29% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 143 and Thunderbird 143. | |
| Modificada | Media (6.5) | 0.30% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Alta (7.3) | 0.35% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Alta (7.1) | 0.28% | — | Mozilla FirefoxMozilla Thunderbird | 16/9/2025 | 17/6/2026 | Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | |
| Modificada | Crítica (9.8) | 0.47% | — | Mozilla FirefoxMozilla Thunderbird | 19/8/2025 | 30/9/2026 | Memory safety bugs present in Firefox 141 and Thunderbird 141. 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 142 and Thunderbird 142. | |
| Modificada | Alta (8.1) | 0.49% | — | Mozilla FirefoxMozilla Thunderbird | 19/8/2025 | 5/10/2026 | Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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… |