Veeam Software Appliance Boot Failures Affect Certain AMD EPYC Hosts

Veeam warned that Software Appliance virtual machines running version 13.1 and later can intermittently fail to boot on hosts using certain AMD EPYC processors, including the 7262, 7302, and 7F72. An early-boot Linux kernel jitterentropy health test can fail in Federal Information Processing Standards (FIPS) mode, triggering a kernel panic. The issue affects appliance startup; Veeam says Backup & Replication operates normally once the appliance boots successfully.

Veeam recommends moving affected appliances to hosts with different processors. Where migration is not feasible, administrators should disable automatic updates and perform updates manually while monitoring reboots. Recovery after a kernel panic requires fully powering off the virtual machine and powering it back on, rather than restarting the guest operating system. Separately, Veeam reported that some products are affected by CVE-2026-98432, a critical Linux kernel vulnerability allowing unauthenticated remote root command execution on servers with Multipath TCP listeners, and is distributing patched kernels for some affected components. Administrators should track those security fixes alongside the boot-failure workaround.