Is CVE-2019-25627 actively exploited?

No active exploitation of CVE-2019-25627 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-25627 be exploited remotely?

No. CVE-2019-25627 requires local access to exploit.

What is the CVSS score of CVE-2019-25627?

CVE-2019-25627 has a CVSS score of 8.4 (HIGH).

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HIGH

CVE-2019-25627

CWE-434Published: March 24, 2026· Updated: Mar 24, 2026

8.4

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th

Official Description

FlexHEX 2.71 contains a local buffer overflow vulnerability in the Stream Name field that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overflow. Attackers can craft a malicious text file with carefully aligned shellcode and SEH chain pointers, paste the contents into the Stream Name dialog, and execute arbitrary commands like calc.exe when the exception handler is triggered.

NVD Source

Technical Analysis

CVE-2019-25627 requires local access, meaning attackers must already have a foothold on the target system.

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 8.4.