CVE-2026-29648

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Summary

CVECVE-2026-29648
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-20 21:16:19 UTC
Updated2026-04-20 21:16:19 UTC
DescriptionIn OpenXiangShan NEMU, when Smstateen is enabled, clearing mstateen0.ENVCFG does not correctly restrict access to henvcfg and senvcfg. As a result, less-privileged code may read or write these CSRs without the required exception, potentially bypassing intended state-enable based isolation controls in virtualized or multi-privilege environments.

Risk And Classification

Problem Types: n/a

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
docs.riscv.org/reference/isa/priv/smstateen.html [email protected] docs.riscv.org
github.com/OpenXiangShan/XiangShan/pull/3978 [email protected] github.com
github.com/OpenXiangShan/NEMU/issues/690 [email protected] github.com
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