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CVE-2026-50314 is a critical Microsoft Office vulnerability that can lead to code execution when Office processes a specially crafted file. Available reporting describes the issue as a use-after-free in Office, while Microsoft product advisory context characterizes it as a type confusion vulnerability. The flaw is triggered through malicious Office content and can be reached when a user opens a crafted document; the Preview Pane is also identified as an attack vector. Successful exploitation results in code execution in the security context of the logged-on 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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability affecting supported Microsoft Office products.
A critical remote code execution vulnerability in Microsoft Office, typically triggered by opening a specially crafted document.
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.