CVE-2019-25570

MEDIUM 5.5

RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

2th

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.

CWE	CWE-1260
Vendor	realterm
Product	realterm: serial terminal
Published	Mar 21, 2026
Last Updated	Mar 24, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Realterm / RealTerm: Serial Terminal

2.0.0.70

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46390 realterm.sourceforge.io: https://realterm.sourceforge.io/ sourceforge.net: https://sourceforge.net/projects/realterm/files/ vulncheck.com: https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-field

Credits

Alejandra Sánchez