Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-29647

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c31f52f197e90e01a5e17ca8a05c74aaba5214afa163abc33cbf88176e0e5af1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://docs.riscv.org/reference/isa/priv/smstateen.html#state-enable-0-registers"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/references/2
{"url":"https://github.com/OpenXiangShan/NEMU/issues/691"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/OpenXiangShan/NEMU/issues/691"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/adp/0/references/0
{"url":"https://github.com/OpenXiangShan/XiangShan/pull/3978"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab4caec4f7fce26fae9b3b0a6d2890604a5f787a4f62991396034669c7db5ed2 · sha256:fd8cdc8de73f998b… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer