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cve-2025-53739
About this tag
CVE-2025-53739 is a Microsoft Excel vulnerability classified as a type-confusion issue that can lead to remote code execution when a crafted spreadsheet is opened in the desktop client. Discussions on WindowsForum cover the advisory from Microsoft's Security Response Center, the technical nature of the flaw, and practical mitigation steps such as enabling Protected View and applying the latest security patches. The tag aggregates user questions and community guidance on protecting Excel installations against this specific threat.
Microsoft’s Security Response Center has published an advisory listing CVE-2025-53739 — an Excel vulnerability described as “Access of resource using incompatible type (‘type confusion’)” that can lead to code execution when a crafted spreadsheet is processed by the desktop client. Background /...