What is CVE-2022-34640?

CVE-2022-34640 is a medium-severity vulnerability in Openhwgroup Cva6. CVSS score: 5.5/10. Published 2022-07-18.

How severe is CVE-2022-34640?

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

Vulnerability in Openhwgroup Cva6

CVE-2022-34640

The *tval of ecall/ebreak in CVA6 commit d315ddd0f1be27c1b3f27eb0b8daf471a952299a was discovered to be incorrect.

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 2026-09-30.

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

Openhwgroup Cva6

References

github.com/openhwgroup/cva6/issues/898 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-34640?: CVE-2022-34640 is a medium-severity vulnerability in Openhwgroup Cva6. CVSS score: 5.5/10. Published 2022-07-18.
How severe is CVE-2022-34640?: Medium severity. CVSS v3 base score is 5.5 out of 10.