CVE-2019-25627

HIGH WAF: Medium
CVSS 7.8 Published: 2026-03-24
CWE-434

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.

WAF Coverage Analysis

Unrestricted File Upload Medium WAF Coverage

OWASP: A04:2021 Insecure Design

930xxx - Local File Inclusion

Affected Software

VendorProductVersion
flexhexflexhex2.71

References

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