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CVE-2026-32189 is a Microsoft Office Excel vulnerability caused by a use-after-free condition (CWE-416). According to the provided content, successful exploitation occurs when an attacker delivers a malicious Office file to a target and convinces the user to open it in Excel. The flaw can then be triggered during local processing of the crafted file, resulting in code execution on the victim system. Microsoft classifies the issue as a remote code execution vulnerability because the attacker can initiate the attack remotely by sending the file, even though the actual code execution occurs locally on the user’s machine. Microsoft also states that the Preview Pane is not an attack vector for this issue.
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No public exploit code observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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