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Office Online Server

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Vendor: Microsoft • 281 CVEs

CVEs (281)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 16, 2026
Jul 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 16, 2026
Jul 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 16, 2026
Jul 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Oct 14, 2026
Jul 14, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 15, 2026
Jul 14, 2026
N/A· v4
3.3 LOW· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 15, 2026
Jul 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jun 19, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 9, 2026
Jun 9, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jun 19, 2026
Jun 9, 2026
N/A· v4
8.2 HIGH· v3
N/A· v2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
ExcelMicrosoft 365+4 more
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
May 12, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
1Microsoft
5365 Apps
ExcelOffice+2 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.