OVH reveals semi-secret plan to fix critical Januscape hypervisor bug with mass reboots – and an Australian crash-test dummy
ID: 5bdcb84c-6ab4-57cb-946f-ac4a048ccd76
STIX ID: report--5bdcb84c-6ab4-57cb-946f-ac4a048ccd76
Feed Name: The Register (Security)
Threat Score
OVH performed a rapid emergency remediation for the critical Januscape KVM guest-host escape (CVE-2026-53359) by backporting a patch into its Debian production images and rebooting thousands of hosts (starting with Sydney as a test). The mass reboots caused VM restart failures, some data corruption, API outages, and hardware issues on a small subset of hosts; OVH delayed detailed disclosure during the rollout and plans a post-mortem to improve future emergency patching.
Your team is not currently subscribed to this feed. You must subscribe to it in order to see this post.