CSIRT Panamá Aviso 2026-Ene-13 Actualizaciones de seguridad de Microsoft para Enero 2026.
Gravedad: Alta
Fecha de publicación: enero 13, 2026
Última revisión: enero 13, 2026
https://msrc.microsoft.com/update-guide/releaseNote/2026-Jan
Sistemas Afectados:
Windows Deployment Services
SQL Server
Windows Hello
Desktop Window Manager
Printer Association Object
Windows Kernel Memory
Windows Ancillary Function Driver for WinSock
Windows Win32K – ICOMP
Windows LDAP – Lightweight Directory Access Protocol
Graphics Kernel
Capability Access Management Service (camsvc)
Windows Installer
Windows Error Reporting
Windows Kernel
Windows Virtualization-Based Security (VBS) Enclave
Windows Common Log File System Driver
Windows Remote Procedure Call
Microsoft Graphics Component
Windows File Explorer
Windows Remote Assistance
Windows Hyper-V
Tablet Windows User Interface (TWINUI) Subsystem
Windows Internet Connection Sharing (ICS)
Windows TPM
Windows Remote Procedure Call Interface Definition Language (IDL)
Windows Kerberos
Windows Shell
Windows Media
Windows Client-Side Caching (CSC) Service
Windows NTFS
Windows DWM
Windows Routing and Remote Access Service (RRAS)
Windows Clipboard Server
Windows SMB Server
Windows WalletService
Windows Local Security Authority Subsystem Service (LSASS)
Windows Server Update Service
Windows Cloud Files Mini Filter Driver
Windows Management Services
Windows Kernel-Mode Drivers
Connected Devices Platform Service (Cdpsvc)
Windows Local Session Manager (LSM)
Windows NTLM
Windows HTTP.sys
Windows Telephony Service
Windows NDIS
Host Process for Windows Tasks
Microsoft Office
Microsoft Office Word
Microsoft Office Excel
Microsoft Office SharePoint
Dynamic Root of Trust for Measurement (DRTM)
Windows Admin Center
Inbox COM Objects
Azure Connected Machine Agent
Azure Core shared client library for Python
Windows Secure Boot
I. Descripción
Microsoft ha liberado sus actualizaciones de seguridad correspondientes al mes de enero de 2026.
Este conjunto de actualizaciones remedia 114 fallas y 3 día cero.
II. Detalle
| Tag | CVE ID | CVE Title | Severity |
|---|---|---|---|
| Agere Windows Modem Driver | CVE-2023-31096 | MITRE: CVE-2023-31096 Windows Agere Soft Modem Driver Elevation of Privilege Vulnerability | Important |
| Azure Connected Machine Agent | CVE-2026-21224 | Azure Connected Machine Agent Elevation of Privilege Vulnerability | Important |
| Azure Core shared client library for Python | CVE-2026-21226 | Azure Core shared client library for Python Remote Code Execution Vulnerability | Important |
| Capability Access Management Service (camsvc) | CVE-2026-20835 | Capability Access Management Service (camsvc) Information Disclosure Vulnerability | Important |
| Capability Access Management Service (camsvc) | CVE-2026-20851 | Capability Access Management Service (camsvc) Information Disclosure Vulnerability | Important |
| Capability Access Management Service (camsvc) | CVE-2026-20830 | Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability | Important |
| Capability Access Management Service (camsvc) | CVE-2026-21221 | Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability | Important |
| Capability Access Management Service (camsvc) | CVE-2026-20815 | Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability | Important |
| Connected Devices Platform Service (Cdpsvc) | CVE-2026-20864 | Windows Connected Devices Platform Service Elevation of Privilege Vulnerability | Important |
| Desktop Window Manager | CVE-2026-20805 | Desktop Window Manager Information Disclosure Vulnerability | Important |
| Desktop Window Manager | CVE-2026-20871 | Desktop Windows Manager Elevation of Privilege Vulnerability | Important |
| Dynamic Root of Trust for Measurement (DRTM) | CVE-2026-20962 | Dynamic Root of Trust for Measurement (DRTM) Information Disclosure Vulnerability | Important |
| Graphics Kernel | CVE-2026-20836 | DirectX Graphics Kernel Elevation of Privilege Vulnerability | Important |
| Graphics Kernel | CVE-2026-20814 | DirectX Graphics Kernel Elevation of Privilege Vulnerability | Important |
| Host Process for Windows Tasks | CVE-2026-20941 | Host Process for Windows Tasks Elevation of Privilege Vulnerability | Important |
| Inbox COM Objects | CVE-2026-21219 | Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability | Important |
| Mariner | CVE-2026-21444 | libtpms returns wrong initialization vector when certain symmetric ciphers are used | Moderate |
| Mariner | CVE-2025-68758 | backlight: led-bl: Add devlink to supplier LEDs | Moderate |
| Mariner | CVE-2025-68757 | drm/vgem-fence: Fix potential deadlock on release | Moderate |
| Mariner | CVE-2025-68764 | NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags | Moderate |
| Mariner | CVE-2025-68756 | block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock | Important |
| Mariner | CVE-2025-68763 | crypto: starfive – Correctly handle return of sg_nents_for_len | Moderate |
| Mariner | CVE-2025-68755 | staging: most: remove broken i2c driver | Moderate |
| Mariner | CVE-2025-68759 | wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring() | Important |
| Mariner | CVE-2025-68766 | irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc() | Important |
| Mariner | CVE-2025-68753 | ALSA: firewire-motu: add bounds check in put_user loop for DSP events | Important |
| Mariner | CVE-2025-68765 | mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add() | Moderate |
| Microsoft Edge (Chromium-based) | CVE-2026-0628 | Chromium: CVE-2026-0628 Insufficient policy enforcement in WebView tag | Unknown |
| Microsoft Graphics Component | CVE-2026-20822 | Windows Graphics Component Elevation of Privilege Vulnerability | Critical |
| Microsoft Office | CVE-2026-20952 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Microsoft Office | CVE-2026-20953 | Microsoft Office Remote Code Execution Vulnerability | Critical |
| Microsoft Office | CVE-2026-20943 | Microsoft Office Click-To-Run Elevation of Privilege Vulnerability | Important |
| Microsoft Office Excel | CVE-2026-20949 | Microsoft Excel Security Feature Bypass Vulnerability | Important |
| Microsoft Office Excel | CVE-2026-20950 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office Excel | CVE-2026-20956 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office Excel | CVE-2026-20957 | Microsoft Excel Remote Code Execution Vulnerability | Critical |
| Microsoft Office Excel | CVE-2026-20946 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office Excel | CVE-2026-20955 | Microsoft Excel Remote Code Execution Vulnerability | Critical |
| Microsoft Office SharePoint | CVE-2026-20958 | Microsoft SharePoint Information Disclosure Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2026-20959 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2026-20947 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2026-20951 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2026-20963 | Microsoft SharePoint Remote Code Execution Vulnerability | Important |
| Microsoft Office Word | CVE-2026-20948 | Microsoft Word Remote Code Execution Vulnerability | Important |
| Microsoft Office Word | CVE-2026-20944 | Microsoft Word Remote Code Execution Vulnerability | Critical |
| Printer Association Object | CVE-2026-20808 | Windows File Explorer Elevation of Privilege Vulnerability | Important |
| SQL Server | CVE-2026-20803 | Microsoft SQL Server Elevation of Privilege Vulnerability | Important |
| Tablet Windows User Interface (TWINUI) Subsystem | CVE-2026-20827 | Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability | Important |
| Tablet Windows User Interface (TWINUI) Subsystem | CVE-2026-20826 | Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability | Important |
| Windows Admin Center | CVE-2026-20965 | Windows Admin Center Elevation of Privilege Vulnerability | Important |
| Windows Ancillary Function Driver for WinSock | CVE-2026-20831 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability | Important |
| Windows Ancillary Function Driver for WinSock | CVE-2026-20860 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability | Important |
| Windows Ancillary Function Driver for WinSock | CVE-2026-20810 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability | Important |
| Windows Client-Side Caching (CSC) Service | CVE-2026-20839 | Windows Client-Side Caching (CSC) Service Information Disclosure Vulnerability | Important |
| Windows Clipboard Server | CVE-2026-20844 | Windows Clipboard Server Elevation of Privilege Vulnerability | Important |
| Windows Cloud Files Mini Filter Driver | CVE-2026-20940 | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | Important |
| Windows Cloud Files Mini Filter Driver | CVE-2026-20857 | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2026-20820 | Windows Common Log File System Driver Elevation of Privilege Vulnerability | Important |
| Windows Deployment Services | CVE-2026-0386 | Windows Deployment Services Remote Code Execution Vulnerability | Important |
| Windows DWM | CVE-2026-20842 | Microsoft DWM Core Library Elevation of Privilege Vulnerability | Important |
| Windows Error Reporting | CVE-2026-20817 | Windows Error Reporting Service Elevation of Privilege Vulnerability | Important |
| Windows File Explorer | CVE-2026-20939 | Windows File Explorer Information Disclosure Vulnerability | Important |
| Windows File Explorer | CVE-2026-20932 | Windows File Explorer Information Disclosure Vulnerability | Important |
| Windows File Explorer | CVE-2026-20937 | Windows File Explorer Information Disclosure Vulnerability | Important |
| Windows File Explorer | CVE-2026-20823 | Windows File Explorer Information Disclosure Vulnerability | Important |
| Windows Hello | CVE-2026-20852 | Windows Hello Tampering Vulnerability | Important |
| Windows Hello | CVE-2026-20804 | Windows Hello Tampering Vulnerability | Important |
| Windows HTTP.sys | CVE-2026-20929 | Windows HTTP.sys Elevation of Privilege Vulnerability | Important |
| Windows Hyper-V | CVE-2026-20825 | Windows Hyper-V Information Disclosure Vulnerability | Important |
| Windows Installer | CVE-2026-20816 | Windows Installer Elevation of Privilege Vulnerability | Important |
| Windows Internet Connection Sharing (ICS) | CVE-2026-20828 | Windows rndismp6.sys Information Disclosure Vulnerability | Important |
| Windows Kerberos | CVE-2026-20849 | Windows Kerberos Elevation of Privilege Vulnerability | Important |
| Windows Kerberos | CVE-2026-20833 | Windows Kerberos Information Disclosure Vulnerability | Important |
| Windows Kernel | CVE-2026-20838 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows Kernel | CVE-2026-20818 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows Kernel Memory | CVE-2026-20809 | Windows Kernel Memory Elevation of Privilege Vulnerability | Important |
| Windows Kernel-Mode Drivers | CVE-2026-20859 | Windows Kernel-Mode Driver Elevation of Privilege Vulnerability | Important |
| Windows LDAP – Lightweight Directory Access Protocol | CVE-2026-20812 | LDAP Tampering Vulnerability | Important |
| Windows Local Security Authority Subsystem Service (LSASS) | CVE-2026-20854 | Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability | Critical |
| Windows Local Security Authority Subsystem Service (LSASS) | CVE-2026-20875 | Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability | Important |
| Windows Local Session Manager (LSM) | CVE-2026-20869 | Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20924 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20874 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20862 | Windows Management Services Information Disclosure Vulnerability | Important |
| Windows Management Services | CVE-2026-20866 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20867 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20861 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20865 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20858 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20918 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20877 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20923 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Management Services | CVE-2026-20873 | Windows Management Services Elevation of Privilege Vulnerability | Important |
| Windows Media | CVE-2026-20837 | Windows Media Remote Code Execution Vulnerability | Important |
| Windows Motorola Soft Modem Driver | CVE-2024-55414 | Windows Motorola Soft Modem Driver Elevation of Privilege Vulnerability | Important |
| Windows NDIS | CVE-2026-20936 | Windows NDIS Information Disclosure Vulnerability | Important |
| Windows NTFS | CVE-2026-20922 | Windows NTFS Remote Code Execution Vulnerability | Important |
| Windows NTFS | CVE-2026-20840 | Windows NTFS Remote Code Execution Vulnerability | Important |
| Windows NTLM | CVE-2026-20925 | NTLM Hash Disclosure Spoofing Vulnerability | Important |
| Windows NTLM | CVE-2026-20872 | NTLM Hash Disclosure Spoofing Vulnerability | Important |
| Windows Remote Assistance | CVE-2026-20824 | Windows Remote Assistance Security Feature Bypass Vulnerability | Important |
| Windows Remote Procedure Call | CVE-2026-20821 | Remote Procedure Call Information Disclosure Vulnerability | Important |
| Windows Remote Procedure Call Interface Definition Language (IDL) | CVE-2026-20832 | Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability | Important |
| Windows Routing and Remote Access Service (RRAS) | CVE-2026-20868 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows Routing and Remote Access Service (RRAS) | CVE-2026-20843 | Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability | Important |
| Windows Secure Boot | CVE-2026-21265 | Secure Boot Certificate Expiration Security Feature Bypass Vulnerability | Important |
| Windows Server Update Service | CVE-2026-20856 | Windows Server Update Service (WSUS) Remote Code Execution Vulnerability | Important |
| Windows Shell | CVE-2026-20834 | Windows Spoofing Vulnerability | Important |
| Windows Shell | CVE-2026-20847 | Microsoft Windows File Explorer Spoofing Vulnerability | Important |
| Windows SMB Server | CVE-2026-20926 | Windows SMB Server Elevation of Privilege Vulnerability | Important |
| Windows SMB Server | CVE-2026-20921 | Windows SMB Server Elevation of Privilege Vulnerability | Important |
| Windows SMB Server | CVE-2026-20919 | Windows SMB Server Elevation of Privilege Vulnerability | Important |
| Windows SMB Server | CVE-2026-20927 | Windows SMB Server Denial of Service Vulnerability | Important |
| Windows SMB Server | CVE-2026-20848 | Windows SMB Server Elevation of Privilege Vulnerability | Important |
| Windows SMB Server | CVE-2026-20934 | Windows SMB Server Elevation of Privilege Vulnerability | Important |
| Windows Telephony Service | CVE-2026-20931 | Windows Telephony Service Elevation of Privilege Vulnerability | Important |
| Windows TPM | CVE-2026-20829 | TPM Trustlet Information Disclosure Vulnerability | Important |
| Windows Virtualization-Based Security (VBS) Enclave | CVE-2026-20938 | Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability | Important |
| Windows Virtualization-Based Security (VBS) Enclave | CVE-2026-20935 | Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability | Important |
| Windows Virtualization-Based Security (VBS) Enclave | CVE-2026-20819 | Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability | Important |
| Windows Virtualization-Based Security (VBS) Enclave | CVE-2026-20876 | Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability | Critical |
| Windows WalletService | CVE-2026-20853 | Windows WalletService Elevation of Privilege Vulnerability | Important |
| Windows Win32K – ICOMP | CVE-2026-20811 | Win32k Elevation of Privilege Vulnerability | Important |
| Windows Win32K – ICOMP | CVE-2026-20870 | Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability | Important |
| Windows Win32K – ICOMP | CVE-2026-20920 | Win32k Elevation of Privilege Vulnerability | Important |
| Windows Win32K – ICOMP | CVE-2026-20863 | Win32k Elevation of Privilege Vulnerability | Important |
III. Referencia a soluciones, herramientas e información
Actualizar utilizando Microsoft Windows Update o herramientas de administración de actualizaciones centralizadas.
IV. Información de contacto
CSIRT PANAMA
Computer Security Incident Response Team Autoridad Nacional para la Innovacion Gubernamental
E-Mail: incidentes@cert.pa
E-Mail: info@cert.pa
Phone: +507 520-CERT (2378)
Web: https://cert.pa
Key ID: 16F2B124