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...

CVE-2026-58530: Heap-based Buffer Overflow

Heap-based buffer overflow in Windows Resilient File System ReFS allows an unauthorized attacker to execute code 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-2026-58529

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-2026-58560

Name of the Vulnerable Software and Affected Versions Microsoft Office 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 attacker...

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,...

CVE-2026-54124: Integer Overflow or Wraparound

Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally...

CVE-2026-56189: Heap-based Buffer Overflow

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally...

CVE-2026-55949: Use of Uninitialized Resource

Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-55947: Heap-based Buffer Overflow

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

CVE-2026-54131: Use After Free

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-55120: Heap-based Buffer Overflow

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

CVE-2026-55123: Heap-based Buffer Overflow

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

CVE-2026-55128: Use After Free

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally...

CVE-2026-55056: Heap-based Buffer Overflow

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

CVE-2026-55131: Heap-based Buffer Overflow

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

CVE-2026-55053: Heap-based Buffer Overflow

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

CVE-2026-55132: Double Free

Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally...

CVE-2026-55058: Out-of-bounds Read

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

CVE-2026-55037: Heap-based Buffer Overflow

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