CVE-2019-25570

medium

Description

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Port field. Attackers can paste a buffer of 1000 characters into the Port input field and click the open button to trigger a crash.

References

https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-field

https://www.exploit-db.com/exploits/46390

https://sourceforge.net/projects/realterm/files/

https://realterm.sourceforge.io/

Details

Source: Mitre, NVD

Published: 2026-03-21

Updated: 2026-03-21

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium

CVSS v4

Base Score: 6.8

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

Severity: Medium