Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

Critical FreeBSD Hypervisor Flaw Allows RCE

September 23, 2024
Reading Time: 2 mins read
in Alerts
Critical FreeBSD Hypervisor Flaw Allows RCE

A critical vulnerability (CVE-2024-41721) has been discovered in the FreeBSD hypervisor, bhyve, posing a significant security risk that could allow malicious software running in a guest virtual machine (VM) to execute arbitrary code on the host system. This flaw affects all supported versions of FreeBSD and has been promptly addressed by the FreeBSD Project through a security patch. The vulnerability arises from inadequate boundary validation in the USB code, which can lead to out-of-bounds reads on the heap, resulting in potential remote code execution.

The bhyve hypervisor enables the operation of guest operating systems within virtual machines, but a malicious, privileged software running in a guest VM can exploit this vulnerability to either crash the hypervisor process or execute code in the bhyve userspace, which typically operates with root privileges. Although bhyve is designed to run in a Capsicum sandbox that constrains the capabilities of the bhyve process, the inherent risk of this vulnerability necessitates immediate attention from users.

Currently, no workaround exists for this vulnerability; however, guest systems that do not utilize XHCI emulation are not affected. To mitigate the risk, users are strongly advised to upgrade their FreeBSD systems to supported stable or release branches that have been patched. This process can be carried out through binary patches using the freebsd-update utility or by applying source code patches and recompiling the operating system.

FreeBSD users should prioritize these security updates to protect their systems from potential exploitation. Following the updates, it is crucial to restart the corresponding bhyve processes or reboot the system to ensure that the patches are fully applied. By taking these steps, users can safeguard their environments against this serious vulnerability and maintain the integrity of their virtualized systems.

Reference:
  • Critical FreeBSD Hypervisor Vulnerability Exposes Host to Remote Code Execution
Tags: Cyber AlertsCyber Alerts 2024Cyber threatsSeptember 2024SoftwareVulnerabilities
ADVERTISEMENT

Related Posts

PolarEdge Expands Router Botnet

PolarEdge Expands Router Botnet

October 22, 2025
PolarEdge Expands Router Botnet

Google Finds New Russian Malware

October 22, 2025
PolarEdge Expands Router Botnet

Copilot Flaw Exposes Sensitive Data

October 22, 2025
WatchGuard Devices At Risk Of RCE

BitLocker May Lock Your Data Silently

October 21, 2025
WatchGuard Devices At Risk Of RCE

North Korea Hackers Use New JS Malware

October 21, 2025
WatchGuard Devices At Risk Of RCE

WatchGuard Devices At Risk Of RCE

October 21, 2025

Latest Alerts

Copilot Flaw Exposes Sensitive Data

PolarEdge Expands Router Botnet

Google Finds New Russian Malware

BitLocker May Lock Your Data Silently

North Korea Hackers Use New JS Malware

WatchGuard Devices At Risk Of RCE

Subscribe to our newsletter

    Latest Incidents

    Union Cyberattack Raises Concerns

    Romanian Prisoner Hacks Prison IT

    Hackers Claim Data On NSA Officials

    Muji Stops Online Sales After Attack

    Major Telco Confirms Cyber Breach

    Russian Hackers Leak UK MoD Files

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial