7.7Alta

CVE-2026-42832Microsoft Office Spoofing Vulnerability

Microsoft Microsoft Excel for Android; Microsoft Microsoft Office LTSC for Mac 2021; Microsoft Microsoft Office LTSC for Mac 2024; Microsoft Microsoft Word for… Publicada: 2026-05-12 19:59 (hace 6 meses)

Descripción

Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.

Debilidad (CWE): CWE-284

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Fabricante	Producto	Versiones
microsoft	excel	16.0.0.0 – < 16.0.19822.20190
Microsoft	Microsoft Excel for Android	16.0.0.0 – < 16.0.19822.20190
Microsoft	Microsoft Office LTSC for Mac 2021	16.0.1 – < 16.109.26051019
Microsoft	Microsoft Office LTSC for Mac 2024	16.0.0 – < 16.109.26051019
Microsoft	Microsoft Word for Android	16.0.0.0 – < 16.0.19822.20190
microsoft	office	2024
microsoft	office long term servicing channel	2021
microsoft	office macos 2021	16.0.1 – < 16.109.26051019
microsoft	office macos 2024	16.0.0 – < 16.109.26051019
microsoft	word	16.0.0.0 – < 16.0.19822.20190

Referencias y parches

Microsoft Office Spoofing Vulnerability vendor-advisorypatchVendor Advisory

Coincidencias CPE (NVD) (4)

cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:* < 16.0.19822.20190
cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:*
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*
cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:* < 16.0.19822.20190

Puntuación CVSS

7.7Alta

Fuente: microsoft · CVSS 3.1

Vector de ataque: Local
Complejidad: Baja
Privilegios: Ninguno
Interacción del usuario: Ninguna
Alcance: Sin cambio
Confidencialidad: Alto
Integridad: Alto
Disponibilidad: Ninguno

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Todas las puntuaciones (3)

cna	CVSS 3.1	7.7Alta
secure@microsoft.com	CVSS 3.1	7.7Alta
nvd	CVSS 3.1	5.5Media

EPSS (probabilidad de explotación en 30 días)

0.22%

superior al 13 % de todas las CVE

Evaluación de CISA (SSVC)

Explotación: none
Automatizable: no
Impacto técnico: total

Cronología

ID reservado2026-04-30
Publicada2026-05-12 19:59
Llegó a IP-DB2026-10-24 23:48
Última actualización2026-10-26 21:10

Asignada por (CNA): microsoft
Estado en NVD: Analyzed

Ver en la fuente: CVE.org · NVD

Reciba un aviso cuando estos productos tengan una vulnerabilidad nueva

Activar alertas por correo

Gratis · con cuenta · se desactiva cuando quiera

CVE recientes del mismo producto — Microsoft Office / 365 Apps

8.8Alta

CVE-2026-120003 ayer

Microsoft Office Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

8.8Alta

CVE-2026-120001 ayer

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

6.5Media

CVE-2026-119999 ayer

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office 365 for Mac; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

7.8Alta

CVE-2026-119997 ayer

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

6.5Media

CVE-2026-119998 ayer

Microsoft Office Security Feature Bypass Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Product ui does not warn user of unsafe actions in Microsoft Office allows an unauthorized attacker to bypass a security feature over a network.

7.5Alta

CVE-2026-119995 ayer

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Microsoft 365 Apps for Enterprise; Microsoft Microsoft Office LTSC 2021; Microsoft Microsoft Office LTSC 2024

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.