Microsoft Office Online Server vulnerabilities
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Published CVEs affecting Microsoft Office Online Server: 166 record(s), with affected versions and fixes.cpe:2.3:a:microsoft:office_online_server
CVE-2026-68817
High · 7.8
CWE-121 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68816
High · 7.8
CWE-121 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68815
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68814
High · 7.8
CWE-125 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68812
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68811
High · 7.8
CWE-843 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68810
High · 7.8
CWE-822 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68808
Medium · 5.5
CWE-125 Aug 11, 2026
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-68807
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68806
High · 7.8
CWE-787 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68805
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68804
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68803
High · 7.8
CWE-843 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68802
Medium · 5.5
CWE-125 Aug 11, 2026
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-68801
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68800
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68799
Medium · 5.5
CWE-908 Aug 11, 2026
Microsoft Excel Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-68797
Medium · 5.5
CWE-125 Aug 11, 2026
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-68796
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68795
High · 7.8
CWE-121 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68794
High · 7.8
CWE-122 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68793
High · 7.8
CWE-125 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-65807
High · 8.8
CWE-843 Aug 11, 2026
Microsoft Excel Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-55949
High · 7.8
CWE-908 Jul 14, 2026
Microsoft Excel Remote Code Execution Vulnerability
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55947
High · 7.8
CWE-122 Jul 14, 2026
Microsoft Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.