Is CVE-2020-24345 actively exploited?

No active exploitation of CVE-2020-24345 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-24345 be exploited remotely?

No. CVE-2020-24345 requires local access to exploit.

What is the CVSS score of CVE-2020-24345?

CVE-2020-24345 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2020-24345

CWE-787Published: August 13, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option

NVD Source

Technical Analysis

CVE-2020-24345 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.