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CVE-2025-24057 is a heap-based buffer overflow vulnerability in Microsoft Office that can lead to remote code execution. The flaw affects Microsoft Office and Microsoft 365 Apps and is triggered through a specially crafted file. Available reporting indicates the vulnerability can be reached through the Office Preview Pane, meaning code execution may occur during preview of malicious content rather than only after full document editing. The issue is described as allowing an unauthorized attacker to execute code in the context of the affected user.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A heap-based buffer overflow in Microsoft Office/365 that can lead to local code execution and is notable because it can be triggered via Preview Pane.
Heap-based buffer overflow remote code execution vulnerability in Microsoft Office.
A Microsoft Office remote code execution vulnerability listed in the summary table.
Remote code execution vulnerability in Microsoft Office.
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.