CVE-2020-23302
CVSS v3
9.8
CRITICAL
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
There is a heap-use-after-free at ecma-helpers-string.c:772 in ecma_ref_ecma_string in JerryScript 2.2.0
Technical details
- Published
- 2021-06-10
Frequently asked questions
What is CVE-2020-23302?
There is a heap-use-after-free at ecma-helpers-string.c:772 in ecma_ref_ecma_string in JerryScript 2.2.0
Is CVE-2020-23302 actively exploited?
Active exploitation of CVE-2020-23302 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-23302?
CVE-2020-23302 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-23302 affecting your environment?
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