CVE-2026-72286
Linux KVM blocks SEV‑SNP VM migration/mirroring to prevent insecure state transfer.
Is CVE-2026-72286 being exploited?
Not confirmed. CVE-2026-72286 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.18% probability of exploitation in the next 30 days.
How severe is CVE-2026-72286?
CVE-2026-72286 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72286?
Yes. A fix has been recorded for CVE-2026-72286. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72286 affect?
CVE-2026-72286 affects Linux kernel KVM, SEV‑SNP VMs, AMD SEV‑SNP platforms, Hypervisors/hosts running KVM. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72286?
Update Linux kernel to patched release; avoid intra-host SEV‑SNP VM migration.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Intra-host migration/mirroring without SNP state transfer can bypass SEV‑SNP isolation, risking guest data disclosure and VM compromise.
Patch when possible
- affected>= 1dfe571c12cf99244b933208fb77f29471ded677 and < b70404b89daad5f9f33f7ac640b1065cba639935
- affected>= 1dfe571c12cf99244b933208fb77f29471ded677 and < ba06690b28be950bd46d938d9b919c4024292627
- affected>= 1dfe571c12cf99244b933208fb77f29471ded677 and < d2f9df3b615ca0cd45899c090366945528186052
- affected>= 1dfe571c12cf99244b933208fb77f29471ded677 and < 6ee4140788234a6fabf59e6a50e38cdb936008cd
- affected6.11
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.