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CVE-2026-32190 is a Critical remote code execution vulnerability in Microsoft Office caused by a use-after-free condition. The flaw arises from improper handling of object lifetime in Office, allowing memory that has already been freed to be reused in a way that can corrupt program state and redirect execution flow. Microsoft classifies the issue as remote code execution because attacker-controlled content can trigger the vulnerable condition, but the CVSS attack vector is Local because the exploit executes on the target machine in the context of local Office processing. The vulnerability is also reachable through the Preview Pane, making document rendering itself a viable trigger path.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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 critical Microsoft PowerPoint remote code execution vulnerability affecting Office and Microsoft 365, notable because the Preview Pane is an attack vector.
A critical use-after-free remote code execution vulnerability in Microsoft Office, likely exploitable through malicious documents.
A critical use-after-free vulnerability in Microsoft Office that can result in local code execution.
A critical use-after-free remote code execution vulnerability in Microsoft Office that allows an unauthorized attacker to execute code locally, including via the Preview Pane attack vector.
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.