Improper Privilege Management Affecting OpenXiangShan/NEMU package, versions [,2025.12.r1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Apr 2026
- disclosed20 Apr 2026
- creditUnknown
Introduced: 20 Apr 2026
CVE-2026-29646 (opens in a new tab)How to fix?
Upgrade OpenXiangShan/NEMU to version 2025.12.r1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Privilege Management when running with RVH enabled, the handling of writes to the sie register from a VS-mode guest may incorrectly affect the mie register. An attacker can disrupt privilege or virtualization isolation by manipulating interrupt enable states from a guest environment.