How severe is CVE-2022-34642?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Riscv Spike Risc-V Isa Simulator

CVE-2022-34642

The component mcontrol.action in RISCV ISA Sim commit ac466a21df442c59962589ba296c702631e041b5 contains the incorrect mask which can cause a Denial of Service (DoS).

Published 2022-07-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Riscv Spike Risc-V Isa Simulator

References

github.com/riscv-software-src/riscv-isa-sim/issues/1032 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-34642?: CVE-2022-34642 is a medium-severity vulnerability in Riscv Spike Risc-V Isa Simulator. CVSS score: 5.5/10. Published 2022-07-18.
How severe is CVE-2022-34642?: Medium severity. CVSS v3 base score is 5.5 out of 10.