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CVE-2025-49698 is a critical remote code execution vulnerability in Microsoft Word caused by a use-after-free condition. The flaw occurs when Word accesses memory after it has already been freed, creating a memory corruption condition that can be leveraged to execute arbitrary code in the context of the affected application. Microsoft classifies the issue under CWE-416 and describes it as allowing an unauthorized attacker to execute code locally. Although labeled as a remote code execution vulnerability, exploitation is performed through attacker-controlled content delivered to the target, such as a specially crafted document, rather than through direct network exposure. The Preview Pane is also an attack vector, meaning code execution may be triggered during document preview rather than full document opening. Microsoft assigned CVSS 3.1 7.8 with vector AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
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A critical Microsoft Word remote code execution vulnerability that is exploitable via Preview Pane and assessed as more likely to be exploited within 30 days.
A critical use-after-free remote code execution vulnerability in Microsoft Office Word that allows an unauthorized attacker to execute code locally, typically via user interaction such as opening a specially crafted file; the Preview Pane is also an attack vector.
A remote code execution use-after-free vulnerability in Microsoft Office/Microsoft Word.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.