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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
13,539
Total alertas
3075
Críticas
10192
Altas
8
Ransomware
1764
Esta semana
RSS
microsoft × Limpiar todo ×
M Alto vulnerabilidad
14/07/2026
[CVE-2026-57107] Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges …
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-57969] Missing authentication for critical function in Azure CycleCloud allows an authorized attacker to el…
Missing authentication for critical function in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55012] Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code…
Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55014] Improper access control in Windows Remote Help Defense allows an authorized attacker to elevate priv…
Improper access control in Windows Remote Help Defense allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55144] Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering l…
Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally.
nvdaltovulnerabilidad CVSS 7.1 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55899] Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod…
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55948] Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvdaltovulnerabilidad CVSS 7.8 NVD

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M Alto vulnerabilidad
14/07/2026
[CVE-2026-55004] Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally…
Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55005] Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute cod…
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55006] Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacke…
Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Crítico vulnerabilidad
14/07/2026
[CVE-2026-55008] Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Ex…
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
nvdcriticovulnerabilidad CVSS 9.6 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55009] Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elev…
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55011] Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to exec…
Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-54993] Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to …
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-54995] Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to ex…
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
nvdaltovulnerabilidad CVSS 8.1 NVD

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M Alto vulnerabilidad
14/07/2026
[CVE-2026-54996] Concurrent execution using shared resource with improper synchronization ('race condition') in Windo…
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.0 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-54999] Concurrent execution using shared resource with improper synchronization ('race condition') in Windo…
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.
nvdaltovulnerabilidad CVSS 8.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-55001] Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate…
Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-54986] Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges loc…
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD
M Alto vulnerabilidad
14/07/2026
[CVE-2026-54987] Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privil…
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
nvdaltovulnerabilidad CVSS 7.8 NVD