Microsoft 365

CVEs (159)

CVE	Vendor / Product	Sev	CVSS	EPSS	Published	Description
CVE-2026-55134	Microsoft Word	Hig	7.8	0.01	Jul 14, 2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55133	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.
CVE-2026-55132	Microsoft Word	Hig	7.8	0.01	Jul 14, 2026	Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55131	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55129	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55128	Microsoft Word	Hig	7.8	0.01	Jul 14, 2026	Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55127	Microsoft Word	Hig	7.8	0.01	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55125	Microsoft Office	Hig	7.8	0.01	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55124	Microsoft Word	Med	5.5	0.01	Jul 14, 2026	Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-55123	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
CVE-2026-55122	Microsoft Office	Hig	7.1	0.01	Jul 14, 2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-55121	Microsoft Office	Med	5.5	0.01	Jul 14, 2026	Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55120	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
CVE-2026-55058	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55057	Microsoft Office	Med	5.5	0.01	Jul 14, 2026	Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55056	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55055	Microsoft Word	Hig	7.8	0.01	Jul 14, 2026	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55053	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55050	Microsoft Word	Med	5.5	0.01	Jul 14, 2026	Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-55048	Microsoft Office	Hig	7.8	0.00	Jul 14, 2026	Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55134HigJul 14, 2026
Microsoft
Word
risk 0.00cvss 7.8epss 0.01
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55133HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.
CVE-2026-55132HigJul 14, 2026
Microsoft
Word
risk 0.00cvss 7.8epss 0.01
Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55131HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55129HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55128HigJul 14, 2026
Microsoft
Word
risk 0.00cvss 7.8epss 0.01
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55127HigJul 14, 2026
Microsoft
Word
risk 0.00cvss 7.8epss 0.01
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55125HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.01
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55124MedJul 14, 2026
Microsoft
Word
risk 0.00cvss 5.5epss 0.01
Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-55123HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
CVE-2026-55122HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.1epss 0.01
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-55121MedJul 14, 2026
Microsoft
Office
risk 0.00cvss 5.5epss 0.01
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55120HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
CVE-2026-55058HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55057MedJul 14, 2026
Microsoft
Office
risk 0.00cvss 5.5epss 0.01
Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-55056HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-55055HigJul 14, 2026
Microsoft
Word
risk 0.00cvss 7.8epss 0.01
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-55053HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55050MedJul 14, 2026
Microsoft
Word
risk 0.00cvss 5.5epss 0.01
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-55048HigJul 14, 2026
Microsoft
Office
risk 0.00cvss 7.8epss 0.00
Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Page 6 of 8