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CVE-2025-49696 is a Critical remote code execution vulnerability in Microsoft Office caused by an out-of-bounds read. Available reporting also associates the issue with heap-based buffer overflow behavior. Microsoft classifies the weakness under CWE-125 and describes the flaw as allowing an unauthorized attacker to execute code locally, while clarifying that the overall security impact is remote code execution/arbitrary code execution. The vulnerability is notable because exploitation can occur without user interaction, and the Preview Pane is a viable attack vector. Affected platforms include Microsoft Office on Windows, and reporting indicates affected Mac editions were also addressed with subsequent updates for Microsoft Office LTSC for Mac 2021 and 2024.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft Office remote code execution vulnerability affecting Office/365, including Mac versions, with Preview Pane as an exploitation vector and higher likelihood of exploitation within 30 days.
A remote code execution vulnerability in Microsoft Office.
A high-risk Microsoft Office out-of-bounds read and heap-based buffer overflow vulnerability that could allow remote code execution without user interaction.
A critical remote code execution vulnerability in Microsoft Office that can be exploited via the preview pane without user interaction. Rated as more likely to be exploited.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.