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CVE-2025-41227 is a denial-of-service vulnerability affecting VMware ESXi, VMware Workstation Pro, and VMware Fusion. According to the provided advisory context, the flaw is triggered by certain guest options and can be exploited by a malicious actor who has non-administrative privileges inside a guest operating system. Successful exploitation causes exhaustion of memory in the host-side process associated with the virtualized guest, resulting in a denial-of-service condition. The available information indicates a resource-exhaustion condition rather than code execution or privilege escalation.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.