{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-29648", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-20T20:07:13.590Z", "dateReserved": "2026-03-04T00:00:00.000Z", "datePublished": "2026-04-20T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-20T20:07:13.590Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/OpenXiangShan/NEMU/issues/690"}, {"url": "https://github.com/OpenXiangShan/XiangShan/pull/3978"}, {"url": "https://docs.riscv.org/reference/isa/priv/smstateen.html"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-29648", "lastModified": "2026-04-20T21:16:19.733", "metrics": {}, "published": "2026-04-20T21:16:19.733", "references": [{"source": "cve@mitre.org", "url": "https://docs.riscv.org/reference/isa/priv/smstateen.html"}, {"source": "cve@mitre.org", "url": "https://github.com/OpenXiangShan/NEMU/issues/690"}, {"source": "cve@mitre.org", "url": "https://github.com/OpenXiangShan/XiangShan/pull/3978"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{}