近日，甲骨文发布了开源虚拟机 VirtualBox 7.1.8 版本，重点修复了由于 Windows Guest Additions 中 VBxTray 所导致的 100% CPU 占用、虚拟机时钟频率倒退以及 Windows Vista 虚拟机鼠标驱动安装故障等问题。
下面是官方更新日志：
「VirtualBox 7.1.8更新发布 修复CPU占用100%问题：https://uxtt.com/virtualbox-7-1-8-release」VirtualBox 7.1.8 (released April 15 2025)
This is a maintenance release. The following items were fixed and/or added:
- VMM: Fixed issue when VM clock went backwards in rare circumstances (bug #22334)
- GUI: Fixed issue when accelerated cursor image was not displayed correctly (bug #22096)
- DevVirtioSCSI: Fixed issue with restoring saved state
- Graphics: Fixed issue when assertion was triggered on restoring VM state if VMSVGA graphics adapter was used without 3D acceleration (bug #21955)
- Main: Fixed issue when VBoxSVC was crashing on saving machine config through VirtualBox web service (bug #22259)
- Main: Fixed issue when wireless network adapters could not be discovered on modern Linux distributions (bug #22362)
- Main: Fixed issue when deleting running VM snapshot was leaving the .sav file on disk (bug #21345)
- NAT: Fixed connectivity loss on Windows host (bug #22364)
- VBoxManage: Updated User Manual to correct the 'VBoxManage modifyvm' invocation for configuring a VM to use host-only networking (bug #22158)
- VBoxManage: Fixed issue when it was not possible to set disk bandwidth with 'VBoxManage bandwidthctl' command (bug #22328)
- Windows installer: Automatically load the support driver after a successful installation (bug #22292)
- Linux Host Installer: Fixed issue which sometimes resulted in installation failure due to incorrect check whether previous VirtualBox installation is running or not
- Linux Guest Additions: Fixed issue when VBoxClient could crash in XWayland guest (bug #22345)
- Linux Guest Additions: Fixed issue which resulted in cursor image corruption when VM was using VBoxVGA graphics adapter
- Linux Guest Additions: Fixed issue when installation could fail on the system which does not have X11 libraries installed
- Linux Guest Additions: Added initial support for kernel 6.14
- Linux Guest Additions: Introduced initial support for RHEL 9.7 kernel
- Linux Guest Additions: Introduced additional fixes for RHEL 9.4 kernel, (bug #22277)
- Linux Guest Additions: Improved 'rcvboxadd status-kernel' check
- Windows installer: Various bugfixes for the new installation code
- Windows installer: Implemented a new fatal error dialog with the ability to open the installer log file directly
- Windows Guest Additions: Fixed mouse driver installation on Vista guests
- Windows Guest Additions: Fixed uninstallation integrity issues (bug #22290)
- Windows Guest Additions: Fixed driver installation error ERROR_AUTHENTICODE_TRUST_NOT_ESTABLISHED (bug #22300)
- Windows Guest Additions: Fixed 100% CPU usage of VBoxTray which happened under certain circumstances (bug #22123)
- Windows Guest Additions: Now also ships the VBoxAudioTest binary for performing guest audio testing / diagnosis
- Windows Guest Additions: For older Windows versions (Windows 2000 to Windows 7) install alternative Shared Folder driver which avoids some compatibility glitches of the usual driver
官方下载地址：
「VirtualBox 7.1.8更新发布 修复CPU占用100%问题：https://uxtt.com/virtualbox-7-1-8-release」https://download.virtualbox.org/virtualbox/7.1.8/
virtualbox 7.1.8 SHA256SUMS 校验信息：
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6b3935d73593e232e5d48805a4de51f81dbe3e3f0b7d77a19d0757642b7df49c *virtualbox-7.1_7.1.8-168469~Ubuntu~jammy_amd64.deb
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