CVE-2019-25679 HIGH

CVE-2019-25679: RealTerm Serial Terminal 2.0.0.70 Buffer Overflow SEH

Vendor Realterm
Product RealTerm: Serial Terminal
Weakness CWE-787
Published April 5, 2026
Last update April 6, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

RealTerm Serial Terminal 2.0.0.70 contains a structured exception handling (SEH) buffer overflow vulnerability in the Echo Port tab that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a buffer overflow payload with a POP POP RET gadget chain and shellcode that triggers code execution when pasted into the Port field and the Change button is clicked.

Key dates

02Disclosure timeline

April 5, 2026 CVE published
April 6, 2026 Record updated