Security Updates for Microsoft Excel Products (July 2026)

The Microsoft Excel Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. CVE-2026-55054 - Heap-based buffer overflow in Microsoft...

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-2026-58491

Name of the Vulnerable Software and Affected Versions Windows NTFS affected versions not specified Description A heap-based buffer overflow exists in the Windows NTFS file system. This issue allows an unauthorized attacker to elevate privileges through a physical attack, such as using a rogue USB...

PT-2026-58573

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

PT-2026-58542

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

PT-2026-58574

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

PT-2026-58651

Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally...

PT-2026-58279

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

PT-2026-58321

Name of the Vulnerable Software and Affected Versions Microsoft Windows affected versions not specified Description A heap-based buffer overflow in the Remote Desktop Client allows an unauthorized attacker to elevate privileges over a network. This issue can be exploited without requiring user...

PT-2026-58447

Name of the Vulnerable Software and Affected Versions Windows NTFS affected versions not specified Description A heap-based buffer overflow occurs in Windows NTFS, which may allow an unauthorized attacker to execute arbitrary code locally or remotely to affect the system. A heap-based buffer...

PT-2026-58456

Name of the Vulnerable Software and Affected Versions Windows NTFS affected versions not specified Description A heap-based buffer overflow occurs in Windows NTFS, which allows an authorized attacker to execute code locally. This issue can also enable remote attackers to execute arbitrary code an...

PT-2026-58458

Name of the Vulnerable Software and Affected Versions Windows Kernel affected versions not specified Description A heap-based buffer overflow occurs in the Windows Kernel, which allows an authorized attacker to elevate privileges locally. A heap-based buffer overflow is a memory corruption issue...

PT-2026-58425

Name of the Vulnerable Software and Affected Versions Windows NTFS affected versions not specified Description A heap-based buffer overflow exists in Windows NTFS, which could allow an unauthorized attacker to execute code locally. This issue requires user interaction to be triggered...

PT-2026-58123

Name of the Vulnerable Software and Affected Versions Microsoft Windows affected versions not specified Description A heap-based buffer overflow exists in the Windows Bluetooth Port Driver. This issue allows an unauthorized attacker located on an adjacent network to execute arbitrary code and...

PT-2026-58139

Name of the Vulnerable Software and Affected Versions Microsoft Windows affected versions not specified Description A heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network. A heap-based buffer overflow occurs when a program...

PT-2026-58150

Name of the Vulnerable Software and Affected Versions Windows DNS affected versions not specified Description A heap-based buffer overflow exists in the Windows DNS Client. This flaw allows an authorized attacker with local access to elevate their privileges to administrative levels. A heap-based...

PT-2026-58152

Name of the Vulnerable Software and Affected Versions Active Directory Domain Services affected versions not specified Description A heap-based buffer overflow exists in Active Directory Domain Services, which allows an authorized attacker to execute arbitrary code over a network. A heap-based...

PT-2026-58212

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

PT-2026-58213

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

PT-2026-58357

Name of the Vulnerable Software and Affected Versions Windows DirectX affected versions not specified Description A heap-based buffer overflow exists in Windows DirectX. This issue allows an authorized attacker to elevate privileges locally, potentially granting full control over the system. A...