CVE-2019-25627

8.4 HIGH
Published: March 24, 2026 Modified: April 15, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.flexhex.com
Source: disclosure@vulncheck.com
Broken Link Product
http://www.flexhex.com/download/flexhex_setup.exe
Source: disclosure@vulncheck.com
Broken Link Product
https://www.exploit-db.com/exploits/46665
Source: disclosure@vulncheck.com
Exploit VDB Entry

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.4 / 10.0
EPSS (Exploit Probability)
0.0%
5th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

flexhex