CVE-2026-29647_CVE-2026-29647

6.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

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.

Basic Information

ID CVE-2026-29647

Source mitre

Published Apr 20, 2026 at 00:00

Modified Apr 21, 2026 at 19:50

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-269

References

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    "lastseen": "",
    "description": "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.",
    "published": "2026-04-20T00:00:00.000Z",
    "modified": "2026-04-21T19:50:43.685Z",
    "type": "cve",
    "title": "CVE-2026-29647",
    "source": "mitre",
    "references": "https://github.com/OpenXiangShan/NEMU/issues/691\nhttps://github.com/OpenXiangShan/XiangShan/pull/3978\nhttps://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers",
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        "cvssV3": {
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}