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CVE-2026-29647

MEDIUM

6.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.5

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado4/20/2026

Ultima modificacao4/21/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-269

Referencias

https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers(cve@mitre.org)

https://github.com/OpenXiangShan/NEMU/issues/691(cve@mitre.org)

https://github.com/OpenXiangShan/XiangShan/pull/3978(cve@mitre.org)

https://github.com/OpenXiangShan/NEMU/issues/691(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

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