Microsoft 365

CVEs (357)

CVE	Vendor / Product	Sev	Risk	CVSS	EPSS	Published	Description
CVE-2026-88178	Microsoft Office	Cri	0.64	9.8	0.01	Oct 13, 2026	Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
CVE-2026-88156	Microsoft Office	Cri	0.64	9.8	0.01	Oct 13, 2026	Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-70291	Microsoft Office	Cri	0.64	9.8	0.01	Oct 13, 2026	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-78509	Microsoft Office	Cri	0.64	9.8	0.01	Sep 8, 2026	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-108449	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108446	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-108445	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108444	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
CVE-2026-108443	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108442	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108441	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108440	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108439	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108432	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108431	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108430	Microsoft Office	Hig	0.57	8.8	0.01	Oct 15, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-97780	Microsoft Office	Hig	0.57	8.8	0.01	Oct 13, 2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97778	Microsoft Office	Hig	0.57	8.8	0.01	Oct 13, 2026	Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97777	Microsoft Office	Hig	0.57	8.8	0.01	Oct 13, 2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97776	Microsoft Office	Hig	0.57	8.8	0.01	Oct 13, 2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-88178CriOct 13, 2026
Microsoft
Office
risk 0.64cvss 9.8epss 0.01
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
CVE-2026-88156CriOct 13, 2026
Microsoft
Office
risk 0.64cvss 9.8epss 0.01
Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-70291CriOct 13, 2026
Microsoft
Office
risk 0.64cvss 9.8epss 0.01
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-78509CriSep 8, 2026
Microsoft
Office
risk 0.64cvss 9.8epss 0.01
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVE-2026-108449HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108446HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-108445HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108444HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
CVE-2026-108443HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108442HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108441HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108440HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108439HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108432HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108431HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-108430HigOct 15, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-97780HigOct 13, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97778HigOct 13, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97777HigOct 13, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97776HigOct 13, 2026
Microsoft
Office
risk 0.57cvss 8.8epss 0.01
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

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