{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-29646", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-20T20:39:23.730Z", "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": "2026-04-20T20:39:23.730Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://docs.riscv.org/reference/isa/priv/machine.html"}, {"url": "https://github.com/OpenXiangShan/NEMU/issues/951"}, {"url": "https://github.com/OpenXiangShan/NEMU/pull/938"}, {"url": "https://github.com/OpenXiangShan/NEMU/pull/938/commits/55295c46580456d8d5a9d5736e1fda924b8825ab"}, {"url": "https://docs.riscv.org/reference/isa/unpriv/zicsr.html"}, {"url": "https://docs.riscv.org/reference/isa/priv/supervisor.html"}, {"url": "https://docs.riscv.org/reference/isa/priv/hypervisor.html"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-29646", "lastModified": "2026-04-20T21:16:19.503", "metrics": {}, "published": "2026-04-20T21:16:19.503", "references": [{"source": "cve@mitre.org", "url": "https://docs.riscv.org/reference/isa/priv/hypervisor.html"}, {"source": "cve@mitre.org", "url": "https://docs.riscv.org/reference/isa/priv/machine.html"}, {"source": "cve@mitre.org", "url": "https://docs.riscv.org/reference/isa/priv/supervisor.html"}, {"source": "cve@mitre.org", "url": "https://docs.riscv.org/reference/isa/unpriv/zicsr.html"}, {"source": "cve@mitre.org", "url": "https://github.com/OpenXiangShan/NEMU/issues/951"}, {"source": "cve@mitre.org", "url": "https://github.com/OpenXiangShan/NEMU/pull/938"}, {"source": "cve@mitre.org", "url": "https://github.com/OpenXiangShan/NEMU/pull/938/commits/55295c46580456d8d5a9d5736e1fda924b8825ab"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{}