Is CVE-2019-5082 actively exploited?

No active exploitation of CVE-2019-5082 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5082 be exploited remotely?

Yes. CVE-2019-5082 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-5082?

CVE-2019-5082 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-5082

CRITICAL

CVE-2019-5082

CWE-787Published: January 8, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An exploitable heap buffer overflow vulnerability exists in the iocheckd service I/O-Check functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2019-5082 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.