In 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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | n/a | affected |
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Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 20 Apr 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In 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. | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-04-20T20:07:13.590Z
Reserved: 2026-03-04T00:00:00.000Z
Link: CVE-2026-29648
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-04-20T21:16:19.733
Modified: 2026-04-20T21:16:19.733
Link: CVE-2026-29648
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.