How severe is CVE-2020-22597?

CVE-2020-22597 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-22597 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22597?

CVE-2020-22597 affects Jerryscript. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-22597?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-22597 published?

CVE-2020-22597 was published on 2023-07-03 and last updated on 2026-06-17.

CVE-2020-22597

CVE-2020-22597 is a critical-severity vulnerability in Jerryscript with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jerryscript
Published: 2023-07-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2020-22597?: CVE-2020-22597 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-22597 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22597?: CVE-2020-22597 affects Jerryscript. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-22597?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-22597 published?: CVE-2020-22597 was published on 2023-07-03 and last updated on 2026-06-17.

References

https://github.com/jerryscript-project/jerryscript/issues/3637

Affected products (1)

cpe:2.3:a:jerryscript:jerryscript:2.3.0:*:*:*:*:*:*:*

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