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.

INFO

Published Date :

2026-04-20T00:00:00.000Z

Last Modified :

2026-04-21T19:50:43.685Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-29647 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-29647.

URL Resource
https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers cve-icon cve-icon
https://github.com/OpenXiangShan/NEMU/issues/691 cve-icon cve-icon cve-icon
https://github.com/OpenXiangShan/XiangShan/pull/3978 cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact