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

Published Apr 5, 2026
·
Updated

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.

Affected Software

2 affected components
RealTerm RealTerm Serial Terminal=2.0.0.70
Crun Realterm=2.0.0.70

Event History

Apr 5, 2026
CVE Published
via MITRE·08:45 PM
Data Sourced
via MITRE·08:45 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2019-25679?

The severity of CVE-2019-25679 is rated at high with a score of 8.5.

2

What type of vulnerability is CVE-2019-25679?

CVE-2019-25679 is a buffer overflow vulnerability in RealTerm Serial Terminal.

3

How do I fix CVE-2019-25679?

To fix CVE-2019-25679, update RealTerm Serial Terminal to the latest version that addresses this vulnerability.

4

What impact does CVE-2019-25679 have on systems?

CVE-2019-25679 allows local attackers to execute arbitrary code on affected systems.

5

Which software is affected by CVE-2019-25679?

CVE-2019-25679 affects RealTerm Serial Terminal version 2.0.0.70.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203