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CVE-2026-29646

CVE-2026-29646

CVSS 9.8 CRITICALEPSS 0.4%CWE-267
In OpenXiangShan NEMU prior to 55295c4, when running with RVH (Hypervisor extension) enabled, a VS-mode guest write to the supervisor interrupt-enable CSR (sie) may be handled incorrectly and can influence machine-level interrupt enable state (mie). This breaks privilege/virtualization isolation and can lead to denial of service or privilege-boundary violation in environments relying on NEMU for correct interrupt virtualization.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
n/a · n/a

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Referências
https://docs.riscv.org/reference/isa/priv/hypervisor.htmlhttps://docs.riscv.org/reference/isa/priv/machine.htmlhttps://docs.riscv.org/reference/isa/priv/supervisor.htmlhttps://docs.riscv.org/reference/isa/unpriv/zicsr.htmlhttps://github.com/OpenXiangShan/NEMU/issues/951https://github.com/OpenXiangShan/NEMU/pull/938https://github.com/OpenXiangShan/NEMU/pull/938/commits/55295c46580456d8d5a9d5736e1fda924b8825ab