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CVE-2026-29647

CVE-2026-29647

CVSS 6.5 MEDIUMEPSS 0.2%CWE-269
In OpenXiangShan NEMU, insufficient Smstateen permission enforcement allows lower-privileged code to access IMSIC state via stopei/vstopei CSRs even when mstateen0.IMSIC is cleared, potentially enabling cross-context information leakage or disruption of interrupt handling.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
n/a · n/a

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References
https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registershttps://github.com/OpenXiangShan/NEMU/issues/691https://github.com/OpenXiangShan/XiangShan/pull/3978