This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-81627 →

DEBIAN-CVE-2026-81627

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM win...

Original description

The description as published by the source.

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset D_LCK protection and injecting code into System Management Mode memory.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 qemu

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 qemu

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 qemu

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:11.1.2+ds-1"}]}]

References

advisory security-tracker.debian.org