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Breaking patchedCVE-2026-99999

Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory

Video preview: Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory

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A researcher demonstrated the leak on Vercel's live cloud sandboxes, and Vercel confirmed it. The vulnerability, tracked as CVE-2026-99999 and nicknamed PwnEscape, resides in the Linux kernel's networking code.

Sources

Story so far

  1. Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory – The Hacker News
    first report
  2. Linux kernel gets a fix for a flaw that enabled attackers to escape VMs – CSO Online
    patch / fix released

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#Linux#DataBreach#Vulnerability#Cybersecurity

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