Vulnerabilidades

Resumen — últimos 7 días

Vulnerabilidades nuevas2698▼ 542 respecto a la semana anterior

Críticas / altas1273▼ 220 respecto a la semana anterior

Nueva explotación activa (KEV)4▼ 5 respecto a la semana anterior

Sin puntuar (sin CVSS)254▼ 248 respecto a la semana anterior

302 resultados, ordenados por fecha de publicación (más recientes primero)

CVE	Estado	Severidad	EPSS	Explotación activa	Tecnologías afectadas	Publicada ▼	Modificada	Descripción
CVE-2026-55056	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+2	14/7/2026	16/7/2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55055	Analizada	Alta (7.8)	0.57%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+3	14/7/2026	16/7/2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55054	Analizada	Media (6.5)	0.92%	—	Microsoft 365 Apps Microsoft Excel Microsoft Office Microsoft Office 2021+3	14/7/2026	15/7/2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-55053	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	15/7/2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55050	Analizada	Media (5.5)	0.60%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+4	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-55049	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Office 2016 Microsoft Office 2019 Microsoft Office 2021+1	14/7/2026	16/7/2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55048	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	15/7/2026	Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55047	Analizada	Media (5.5)	0.60%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55046	Analizada	Media (5.5)	0.54%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-55045	Analizada	Alta (8.4)	0.45%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55044	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55043	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+2	14/7/2026	16/7/2026	Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
CVE-2026-55042	Analizada	Media (5.5)	0.54%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+2	14/7/2026	16/7/2026	Use of uninitialized resource in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55041	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55039	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55038	Analizada	Alta (7.8)	0.57%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+3	14/7/2026	16/7/2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55037	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55036	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	16/7/2026	Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55035	Analizada	Baja (3.3)	0.57%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55033	Analizada	Alta (7.8)	0.57%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+3	14/7/2026	16/7/2026	Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55032	Analizada	Alta (7.8)	0.57%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2019 Microsoft Office 2021+3	14/7/2026	16/7/2026	Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55031	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	15/7/2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55029	Analizada	Alta (7.8)	0.47%	—	Microsoft 365 Apps Microsoft Excel Microsoft 365 Microsoft Office 2019+3	14/7/2026	15/7/2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55028	Analizada	Media (5.5)	0.60%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55027	Analizada	Media (5.5)	0.60%	—	Microsoft 365 Apps Microsoft 365 Microsoft Office 2016 Microsoft Office 2019+3	14/7/2026	16/7/2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.