CVE-2019-25627 — HIGH (8.4)

Vulnerability 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.

CVSS Score

8.4

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Flexhex	Flexhex	2.71

Related Weaknesses (CWE)

CWE-434

References

http://www.flexhex.comBroken LinkProduct
http://www.flexhex.com/download/flexhex_setup.exeBroken LinkProduct
https://www.exploit-db.com/exploits/46665ExploitVDB Entry
https://www.vulncheck.com/advisories/flexhex-local-buffer-overflow-via-seh-unicoThird Party Advisory

FAQ

What is CVE-2019-25627?

CVE-2019-25627 is a vulnerability with a CVSS score of 8.4 (HIGH). 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. ...

How severe is CVE-2019-25627?

CVE-2019-25627 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-25627?

Check the references section above for vendor advisories and patch information. Affected products include: Flexhex Flexhex.