CVE-2026-79610: fallo de gravedad alta en Xen
grant-table: double version change race
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.8epss 0.1%
XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain
other grant table operations. Sadly a v2 -> v1 -> v2 change has yet
another effect which wasn't accounted for: During the first change, status
pages would be freed. During the second change they would be allocated
again. Hence across the full pair of change the addresses of the status
pages may change, rendering stale previously calculated pointers into the
status array.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Productos afectados
Xen · XenCVEs relacionadas — Xen
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