Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2704▼ 598 respecto a la semana anterior
Críticas / altas1288▼ 199 respecto a la semana anterior
Nueva explotación activa (KEV)4▼ 5 respecto a la semana anterior
Sin puntuar (sin CVSS)299▼ 211 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) | 0.45% | — | Mozilla Firefox Mobile | 1/9/2026 | 3/9/2026 | Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155. | |
| Analizada | Crítica (9.8) | 0.57% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Other issue in the Profile Backup component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Crítica (9.8) | 0.29% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Alta (7.5) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Alta (8.8) | 0.34% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Alta (7.5) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Crítica (9.8) | 0.29% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Alta (8.8) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155 and Thunderbird 155. | |
| Analizada | Media (4.3) | 0.26% | — | Mozilla Firefox Mobile | 1/9/2026 | 3/9/2026 | Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155. | |
| Analizada | Media (4.3) | 0.31% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155. | |
| Analizada | Media (5.4) | 0.29% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Media (5.4) | 0.17% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Alta (8.8) | 0.44% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Media (5.4) | 0.21% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Crítica (9.6) | 0.32% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Media (5.4) | 0.22% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Crítica (9.6) | 0.32% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Media (5.4) | 0.29% | 💥 PoC | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 2/9/2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Analizada | Alta (8.8) | 0.35% | — | Mozilla Firefox Mobile | 1/9/2026 | 3/9/2026 | Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155. | |
| Analizada | Media (5.4) | 0.26% | — | Mozilla Firefox Mobile | 31/8/2026 | 3/9/2026 | A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the destination origin while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 155.0. | |
| Pendiente de análisis | Media (6.5) | 0.18% | — | Mozilla JSSAI | 24/8/2026 | 28/8/2026 | A flaw was found in JSS (Java Security Services). The JSSTrustManager class does not verify NSS trust flags when validating CA certificates, allowing certificates present in the NSS database without TRUSTED_CA flags to be accepted as trust anchors for TLS connections. In non-default configurations where certificate… | |
| Modificada | Crítica (10) | 0.46% | — | Mozilla FirefoxMozilla Thunderbird | 18/8/2026 | 1/9/2026 | Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Thunderbird 154, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 140.15, and Thunderbird 153.2. | |
| Modificada | Crítica (9.8) | 0.71% | — | Mozilla FirefoxMozilla Thunderbird | 18/8/2026 | 1/9/2026 | Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154,… | |
| Modificada | Crítica (9.8) | 0.57% | — | Mozilla FirefoxMozilla Thunderbird | 18/8/2026 | 1/9/2026 | Internally found bugs present in Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154. | |
| Modificada | Crítica (9.8) | 0.61% | — | Mozilla FirefoxMozilla Thunderbird | 18/8/2026 | 1/9/2026 | Internally found bugs present in Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1,… |