Vulnerabilidades
Resumen — últimos 7 días
Vulnerabilidades nuevas2703▼ 615 respecto a la semana anterior
Críticas / altas1293▼ 208 respecto a la semana anterior
Nueva explotación activa (KEV)4▼ 5 respecto a la semana anterior
Sin puntuar (sin CVSS)291▼ 219 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 | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.26% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Alta (8.8) | 0.33% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Analizada | Media (5.3) | 0.36% | — | Mozilla FirefoxMozilla Thunderbird | 15/9/2026 | 6/10/2026 | Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. | |
| Aplazada | Alta (7.1) | 0.19% | — | Webassembly WabtAIRlboxAIWasmbind Wasm BoxcAIMozilla FirefoxAI | 12/9/2026 | 22/9/2026 | wasm2c in WebAssembly wabt through 1.0.41 allows sandbox escape in some situations that primarily involve 32-bit platforms, aka a "table flip" attack. It does not check the return value of calloc() in wasm_rt_allocate_funcref_table() (wasm2c/wasm-rt-impl-tableops.inc). When the funcref table allocation fails,… | |
| Analizada | Media (4.3) | 0.28% | — | Mozilla Firefox Mobile | 8/9/2026 | 5/10/2026 | A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1. | |
| Analizada | Alta (7.5) | 0.42% | — | Mozilla Thunderbird | 1/9/2026 | 3/9/2026 | The values of the mail.allowed_attachment_hostnames advanced config setting were used in a regular expression without escaping. For some possible valid hostnames, this could allow certain unintended hostnames to also match and serve remote attachments. This vulnerability was fixed in Thunderbird 155 and Thunderbird… | |
| Analizada | Alta (7.5) | 0.27% | — | Mozilla Thunderbird | 1/9/2026 | 3/9/2026 | A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Alta (7.5) | 0.26% | — | Mozilla Thunderbird | 1/9/2026 | 3/9/2026 | A maliciously constructed mail header could lead to a one byte read past the end of a buffer. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Crítica (9.1) | 0.32% | — | Mozilla Thunderbird | 1/9/2026 | 3/9/2026 | Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. | |
| Analizada | Crítica (9.8) | 0.63% | — | Mozilla Thunderbird | 1/9/2026 | 3/9/2026 | Malicious calendar invitations could use file URI attachments to launch local or network-hosted executables on Windows, bypassing Thunderbird's normal executable attachment protections. With the new invitation display enabled, the attachment could also appear under a misleading filename. This vulnerability was fixed… | |
| Analizada | Alta (7.5) | 0.37% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. 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 155,… | |
| Analizada | Alta (7.5) | 0.43% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. 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 155, Firefox ESR 153.2,… | |
| Modificada | Crítica (9.8) | 0.38% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. 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 155,… | |
| Modificada | Crítica (9.8) | 0.56% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Internally found bugs present in Thunderbird 154. 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 155 and Thunderbird 155. | |
| Modificada | Crítica (9.8) | 0.63% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Modificada | 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. | |
| Modificada | Media (6.1) | 0.34% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Modificada | Media (6.5) | 0.37% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155. | |
| Modificada | Media (4.3) | 0.21% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. | |
| Modificada | Media (6.1) | 0.38% | — | Mozilla FirefoxMozilla Thunderbird | 1/9/2026 | 3/9/2026 | Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2. |