CVE-2026-42487: falha de alta gravidade em Xen
x86 HVM I/O port list traversal
Publicada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.9epss 0.1%
probabilidade de exploração
0.1%top 99% das CVEs
exploração observada
nãonenhuma fonte reporta
HVM guest I/O port accesses are subject to either emulation or at least
translation. Translations are managed by the device model (via
XEN_DOMCTL_ioport_mapping), and hence the linked list used may changed
at any time. Traversal of those lists (while handling guest I/O port
accesses) therefore needs synchronizing with updates, which was missing
so far.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
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Xen · XenCVEs relacionadas — Xen
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