Oracle released VirtualBox 7.2.10 on June 16, 2026, a maintenance update for the 7.2 branch. Three of its fixes deal directly with virtual machines that refused to boot: one for CentOS 10, one for OS/2 guests, and one for ARM machines with low memory.
CentOS 10 no longer stalls at boot
The most visible change for anyone running recent distributions sits in the virtual machine monitor (VMM). Until now, trying to boot a CentOS 10 guest could end in an error that killed startup outright:
Fatal glibc error: CPU does not support x86-64-v3
That message comes from glibc, which checks the CPU’s microarchitecture level. CentOS 10 (and other RHEL 10-aligned distros) require at least x86-64-v3, a set of extensions that includes AVX, AVX2, BMI1, BMI2, FMA, and MOVBE, among others. VirtualBox’s VMM wasn’t exposing that level to the guest correctly, so glibc aborted before the system even loaded. The changelog puts it plainly: “Fixed issue when CentOS 10 VM was not booting due to the message ‘Fatal glibc error: CPU does not support x86-64-v3’”. With 7.2.10 the guest sees the CPU it needs and boots normally.
If you build labs around RHEL 10, AlmaLinux 10, Rocky 10, or CentOS Stream 10 itself, this fix saves you from manually editing the machine’s CPU profile.
OS/2 boots again with E1000 networking
VirtualBox remains one of the few comfortable ways to virtualize OS/2, and the community keeping the platform alive (ArcaOS included) feels every release. Version 7.2.10 fixes a bug in the Intel E1000 network card emulation that prevented OS/2 guests from booting: “Fixed issue in E1000 emulation code which prevented OS/2 guest from booting”. The previous workaround was switching to another adapter model; now E1000 works again. This release also stops the same emulation code from creating spurious debug logs.
ARM machines with under 1 GiB of RAM
The 7.2 branch expanded ARM support, and here comes a specific fix: ARM virtual machines with less than 1024 MiB of RAM assigned would not boot. The changelog records it as “Fixed booting issue when ARM VM had less than 1024 MiB of RAM assigned”. This matters to anyone testing lightweight guests or minimal boot images on ARM hosts.
Who should care
These are stability fixes, not new features. If your daily VirtualBox work involves RHEL 10-based distributions, OS/2 guests, or ARM testing, moving to 7.2.10 removes real problems. Everyone else on the desktop still gains a more solid 7.2 branch.
Check the VirtualBox page for versions, supported platforms, and download links. For the rest of what landed in this release, we also covered the initial Linux kernel 7.1 support in VirtualBox 7.2.10.