Microsoft Office Use-After-Free Remote Code Execution Vulnerability
CVE-2025-62199 is a Microsoft Office remote code execution vulnerability caused by a use-after-free condition in Microsoft Office. The available reporting indicates that exploitation is triggered by a specially crafted malicious Office file, with user interaction typically required to download and open the file. Multiple sources in the provided content also note that the Outlook Preview Pane may be a viable trigger path, meaning exploitation may occur when a user previews a malicious email or attachment rather than explicitly opening the document. Successful exploitation results in arbitrary code execution in the context of the affected Office application on the vulnerable workstation.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in Microsoft Office.
A Microsoft remote code execution vulnerability that Microsoft addressed in its November 2025 Patch Tuesday, mentioned to contrast with an alleged unpatched Office 0-day.
A use-after-free vulnerability in Microsoft Office that could enable remote code execution via malicious documents.
A use-after-free vulnerability in Microsoft Office that could enable remote code execution via malicious documents.
The version that knows your environment.
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.