Is CVE-2023-36109 actively exploited?

No active exploitation of CVE-2023-36109 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-36109 be exploited remotely?

Yes. CVE-2023-36109 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-36109?

CVE-2023-36109 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-36109

CRITICAL

CVE-2023-36109

CWE-120Published: September 20, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.

NVD Source

Technical Analysis

CVE-2023-36109 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.