Is CVE-2020-19693 actively exploited?

No active exploitation of CVE-2020-19693 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-19693 be exploited remotely?

Yes. CVE-2020-19693 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-19693?

CVE-2020-19693 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-19693

CRITICAL

CVE-2020-19693

CWE-787Published: April 4, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue found in Espruino Espruino 6ea4c0a allows an attacker to execute arbitrrary code via oldFunc parameter of the jswrap_object.c:jswrap_function_replacewith endpoint.

NVD Source

Risk Analysis

Espruino contains a vulnerability that allows remote attackers to execute arbitrary code via the oldFunc parameter. This critical flaw poses a significant threat to the security of the affected environment.

No public exploit is known, and it is not in CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Update to a patched version of Espruino to remediate the flaw.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-19693 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

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