What is CVE-2019-25570?

CVE-2019-25570 is a medium-severity vulnerability in Realterm Realterm: Serial Terminal, classified under CWE-1260. CVSS score: 5.5/10. Published 2026-03-21.

How severe is CVE-2019-25570?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Realterm Realterm: Serial Terminal

CVE-2019-25570

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 in…

EPSS: 0.000 (11.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Realterm Realterm: Serial Terminal — versions 2.0.0.70

Weakness classification (CWE)

CWE-1260

References

ExploitDB-46390 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field (third-party-advisory)

Frequently asked questions

What is CVE-2019-25570?: CVE-2019-25570 is a medium-severity vulnerability in Realterm Realterm: Serial Terminal, classified under CWE-1260. CVSS score: 5.5/10. Published 2026-03-21.
How severe is CVE-2019-25570?: Medium severity. CVSS v3 base score is 5.5 out of 10.