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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
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Esta semana
RSS
mozilla × Limpiar todo ×
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
M Crítico vulnerabilidad
30/06/2026
[CVE-2026-14241] Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corrupti…
Memory safety bugs present in Firefox 152.0.3. 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 152.0.4.
nvdcriticovulnerabilidad CVSS 9.8 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12324] Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed i…
Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 7.3 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12326] Memory safety bugs present in Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of…
Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.
nvdaltovulnerabilidad CVSS 8.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12327] Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbir…
Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 8.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12328] Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefo…
Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbi…
nvdaltovulnerabilidad CVSS 8.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12314] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140…
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 7.5 NVD

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M Crítico vulnerabilidad
16/06/2026
[CVE-2026-12315] Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firef…
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdcriticovulnerabilidad CVSS 9.1 NVD
M Crítico vulnerabilidad
16/06/2026
[CVE-2026-12316] Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Th…
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
nvdcriticovulnerabilidad CVSS 9.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12317] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird …
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12318] Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Fir…
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
nvdaltovulnerabilidad CVSS 7.3 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12310] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140…
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12312] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140…
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 7.5 NVD
M Crítico vulnerabilidad
16/06/2026
[CVE-2026-12304] Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Fire…
Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdcriticovulnerabilidad CVSS 9.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12305] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140…
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 7.5 NVD

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M Alto vulnerabilidad
16/06/2026
[CVE-2026-12289] Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 1…
Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12290] Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140…
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 8.1 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12291] Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firef…
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
16/06/2026
[CVE-2026-12292] Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 15…
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
nvdaltovulnerabilidad CVSS 8.1 NVD
M Crítico vulnerabilidad
16/06/2026
[CVE-2026-12293] Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Th…
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
nvdcriticovulnerabilidad CVSS 9.8 NVD