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Seguridad de la Información

Alertas de Seguridad de la Información

Vulnerabilidades explotadas activamente, incidentes y análisis relevantes para México y LATAM. Actualizado automáticamente desde fuentes oficiales.

48 vulnerabilidades en CISA KEV — explotación activa confirmada Ver todas →
Última alerta publicada ahora mismo
13,434
Total alertas
3054
Críticas
10108
Altas
8
Ransomware
1778
Esta semana
RSS
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16409] Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thun…
Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16398] Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thun…
Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16399] Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 a…
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16400] Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 a…
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16401] Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox …
Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16391] Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox …
Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16396] Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.…
Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 8.8 NVD

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M Alto vulnerabilidad
21/07/2026
[CVE-2026-16379] Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefo…
Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16384] Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerabi…
Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16385] Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerabi…
Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16386] Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerabi…
Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16371] Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, …
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16372] Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefo…
Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16374] Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firef…
Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16376] Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and…
Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD

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M Alto vulnerabilidad
21/07/2026
[CVE-2026-16378] Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Fire…
Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16365] Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153 and …
Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16366] Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 a…
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16362] Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Fi…
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
21/07/2026
[CVE-2026-16354] Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox …
Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
nvdaltovulnerabilidad CVSS 7.5 NVD