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CVE-2019-25569

MEDIUM

6.2

Description

RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service.

CVE Details

CVSS v3.1 Score6.2

SeverityMEDIUM

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/21/2026

Last Modified3/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

crun:realterm

Weaknesses (CWE)

CWE-787

References

https://realterm.sourceforge.io/(disclosure@vulncheck.com)

https://sourceforge.net/projects/realterm/files/(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/46391(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/realterm-serial-terminal-seh-overflow-crash(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.