Is CVE-2019-5154 actively exploited?

No active exploitation of CVE-2019-5154 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5154 be exploited remotely?

Yes. CVE-2019-5154 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-5154?

CVE-2019-5154 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2019-5154

CWE-122Published: December 12, 2019· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

An exploitable heap overflow vulnerability exists in the JPEG2000 parsing functionality of LEADTOOLS 20.0.2019.3.15. A specially crafted J2K image file can cause an out of bounds write of a null byte in a heap buffer, potentially resulting in code execution. An attack can specially craft a J2K image to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2019-5154 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 8.8.