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CVE-2025-41226 is a denial-of-service vulnerability in VMware ESXi that is triggered during guest operations. According to the provided advisory context, a malicious actor with guest operation privileges on a virtual machine, and who is already authenticated through vCenter Server or ESXi, can exploit the flaw to create a denial-of-service condition affecting guest VMs that have VMware Tools running and guest operations enabled. The specific vulnerable function or code path is not identified in the provided material.
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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.
5 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.