CVE-2026-55120 Microsoft PowerPoint Remote Code Execution Vulnerability

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CVE-2026-55120

CVE-2026-55120 is a heap-based buffer overflow in Microsoft Office PowerPoint that enables a local attacker to execute arbitrary code. The vulnerability is documented across multiple feeds (NVD, CIRCL, NCSC, CVE List) and is associated with PowerPoint, with exploitation requiring user interaction...

CVE-2026-55123 Microsoft PowerPoint Remote Code Execution Vulnerability

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CVE-2026-55123 Microsoft PowerPoint Remote Code Execution Vulnerability

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CVE-2026-55123

CVE-2026-55123 is a heap-based buffer overflow in Microsoft Office PowerPoint that allows local code execution when a user opens a malicious file or link. Affected component is PowerPoint within Microsoft Office; root cause is a heap-based overflow leading to arbitrary code execution. Microsoft’s...

CVE-2026-55043 Microsoft PowerPoint Remote Code Execution Vulnerability

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CVE-2026-55043 Microsoft PowerPoint Remote Code Execution Vulnerability

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CVE-2026-55043

CVE-2026-55043 is a heap-based buffer overflow in Microsoft Office PowerPoint that allows an attacker to execute code locally. The vulnerability affects PowerPoint files (triggered by opening a crafted document) and is categorized with a high impact (local code execution) in CVSS 3.1, with exploi...

Microsoft PowerPoint Remote Code Execution Vulnerability

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

Microsoft PowerPoint Remote Code Execution Vulnerability

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

Microsoft PowerPoint Remote Code Execution Vulnerability

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

Security Updates for Microsoft PowerPoint Products (July 2026)

The Microsoft PowerPoint Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally. CVE-2026-55043, CVE-2026-55120, CVE-2026-55123 Note that...

PT-2026-58563

Name of the Vulnerable Software and Affected Versions Microsoft Office PowerPoint 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 unauthoriz...

PYSEC-2026-2894 PPTAgent: Arbitrary File Write via `save_generated_slides`

Summary This vulnerability has been fixed in https://github.com/icip-cas/PPTAgent/commit/418491a9a1c02d9d93194b5973bb58df35cf9d00. The savegeneratedslides MCP tool accepts a pptxpath argument and writes the generated PPTX file to that path without any workspace restriction or path validation:...

USN-8534-1 libreoffice vulnerabilities

It was discovered that LibreOffice incorrectly handled importing DXF drawings. An attacker could use this issue to cause LibreOffice to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-6039 It was discovered that LibreOffice incorrectly handled certain ODF...

The vulnerability of the LibreOffice office software package, related to stack overflow in buffers, allows a hacker to trigger a service failure.

The vulnerability of the LibreOffice office software package is related to buffer overflow in the stack. Exploiting this vulnerability can allow an attacker to trigger a service failure using specially created PPT files...

CVE-2026-8356

A flaw was found in LibreOffice. This vulnerability, a stack buffer overflow, occurs when processing specially crafted legacy PowerPoint PPT files. An attacker could exploit this by convincing a user to open a malicious document, which may lead to a denial of service DoS due to the application...

CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose...

CVE-2026-8356

CVE-2026-8356 : LibreOffice’s import of legacy binary PPT formats is affected. A stack buffer overflow occurs while processing a colour-replacement record: two fixed-size colour tables are filled from the file, but the write position isn’t reset between the two passes, causing writes past the end...

CVE-2026-8356 Stack buffer overflow in PPT presentation import

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose...