CVE-2026-67846highCWE-266

CVE-2026-67846

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.2%

from disclosure to weapon0 days

Published on NVDAug 18

1st PoCAug 12

exploitation probability

0.2%top 93% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

Berkeley Out-of-Order Machine (BOOM) commit 5223e44cfeb26f41380057a2eb4d651197475f69 contains a potential incorrect privilege assignment issue in the v3 and v4 NBDTLB implementations. The raw mstatus.SUM value participates in the read and write permission logic without an explicit local satp.MODE validity check at the use site

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

Affected products

n/a · n/a

public PoCs found — 1

githubgithub.com/duan528/CVE-2026-67846-BOOM-NBDTLB★ 0

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://github.com/duan528/CVE-2026-67846-BOOM-NBDTLB https://github.com/riscv-boom/riscv-boom https://github.com/riscv-boom/riscv-boom/commit/5223e44cfeb26f41380057a2eb4d651197475f69