What is CVE-2020-22597?

CVE-2020-22597 is a critical-severity vulnerability in Jerryscript. CVSS score: 9.8/10. Published 2023-07-03.

How severe is CVE-2020-22597?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Jerryscript

CVE-2020-22597

An issue in Jerrscript- project Jerryscrip v. 2.3.0 allows a remote attacker to execute arbitrary code via the ecma_builtin_array_prototype_object_slice parameter.

Published 2023-07-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Jerryscript — versions 2.3.0

References

github.com/jerryscript-project/jerryscript/issues/3637 (Exploit, Patch, Issue Tracking)

Frequently asked questions

What is CVE-2020-22597?: CVE-2020-22597 is a critical-severity vulnerability in Jerryscript. CVSS score: 9.8/10. Published 2023-07-03.
How severe is CVE-2020-22597?: Critical severity. CVSS v3 base score is 9.8 out of 10.