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High 1 exploited CVE USN-7850-1 2 CVEs

linux vulnerabilities

Published Oct 30, 2025 · Updated Oct 29, 2026

Summary

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)

A security issues was discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystem:
- USB sound devices;
(CVE-2024-53150)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux 3.13.0-208.259

Vulnerabilities 2

  • High 7.1
    CVE-2024-53150 Exploited

    ALSA: usb-audio: Fix out of bounds reads when finding clock sources

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when finding clock sources The current USB-audio driver code doesn't check bLength of each descriptor at traversing for clock descriptors. That is, wh…

    KEV Apr 9, 2025
  • Unscored —

    x86/vmscape: Add conditional IBPB mitigation

    In the Linux kernel, the following vulnerability has been resolved: x86/vmscape: Add conditional IBPB mitigation VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a userspace hypervisor (like QEMU). Existing …

References

  • report
    https://ubuntu.com/security/CVE-2024-53150
  • report
    https://ubuntu.com/security/CVE-2025-40300