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CVE-2026-41703 is an out-of-bounds read vulnerability affecting VMware ESX/ESXi, VMware Workstation, and VMware Fusion. A malicious actor with virtual machine deployment privileges can trigger the flaw and cause the affected software to read memory outside the intended bounds. In ESX/ESXi, successful exploitation can result in information disclosure and, more likely, a denial-of-service condition in the host process. In VMware Workstation and VMware Fusion, the impact is limited to information disclosure. No evidence of in-the-wild exploitation was reported at the time of disclosure.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds read vulnerability affecting VMware ESX, Workstation, and Fusion that can lead to information disclosure and, on ESXi host processes, likely denial of service.
An out-of-bounds read vulnerability affecting VMware ESX, and also impacting VMware Workstation and Fusion with information disclosure impact; exploitation could lead to information disclosure or denial of service on ESX.
A high-severity vulnerability affecting VMware ESXi, Workstation, and Fusion that could allow information disclosure or denial-of-service on the host by an attacker with VM deployment permissions.
A high-severity vulnerability affecting VMware ESXi, Workstation, and Fusion that can allow information disclosure or denial of service on the host process by an attacker with VM deployment permissions.
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.