Microsoft Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

Microsoft Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

Microsoft Excel Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

Microsoft Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally...

Microsoft Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

Microsoft Excel Information Disclosure Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally...

PT-2026-58541

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A buffer over-read exists in Microsoft Office Excel, which could allow an unauthorized attacker to execute code locally. A buffer over-read occurs when a program reads more dat...

PT-2026-58545

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow exists in Microsoft Office Excel, which could allow an unauthorized attacker to execute arbitrary code locally on the system. This occurs when a us...

PT-2026-58299

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An untrusted pointer dereference allows an unauthorized attacker to perform local information disclosure. This issue occurs when the software accesses a memory address through ...

PT-2026-58550

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An out-of-bounds read exists in Microsoft Office Excel, which allows an unauthorized attacker to disclose sensitive information locally through the use of malicious content...

PT-2026-58558

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An out-of-bounds read issue exists that allows an unauthorized attacker to disclose information over a network. An out-of-bounds read occurs when the software reads data past t...

PT-2026-58529

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A type confusion issue occurs when a resource is accessed using an incompatible type. This flaw allows an unauthorized attacker to execute arbitrary code locally on the system ...

PT-2026-58519

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A use after free issue exists in Microsoft Office Excel. This occurs when an application continues to use a pointer after it has been freed, which can be exploited by an...

Security Updates for Microsoft Office Online Server (July 2026)

The Microsoft Office Online Server or Office Web Apps installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities: - Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. CVE-2026-47642,...

PT-2026-58548

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An out-of-bounds read exists in Microsoft Office Excel, which allows an unauthorized attacker to execute code locally when a user opens a malicious file. Recommendations Apply...

PT-2026-58584

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A stack-based buffer overflow exists in Microsoft Office Excel, which could allow an unauthorized attacker to execute code locally. This issue can be triggered when a user open...

PT-2026-58557

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow exists in Microsoft Office Excel, which allows an unauthorized attacker to execute code locally. This issue can be triggered when a user opens a...

PT-2026-58579

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An untrusted pointer dereference allows an unauthorized attacker to execute code locally via a specially crafted spreadsheet. Recommendations At the moment, there is no...

PT-2026-58589

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized...

PT-2026-58544

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description An integer underflow wrap or wraparound occurs when an arithmetic operation results in a value smaller than the minimum representable value for the data type, causing it to wra...