CVE-2019-25570
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 12% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1260 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2019-1164 | High | 7.8 | 0.9% | - | - |
| CVE-2025-1937 | High | 7.5 | 0.5% | - | Fix |
| CVE-2024-4778 | Critical | 9.8 | 0.4% | - | Fix |
| CVE-2022-27813 | High | 8.1 | 0.2% | - | - |
| CVE-2019-25585 | Medium | 6.2 | 0.2% | - | - |
| CVE-2019-25559 | Medium | 5.5 | 0.2% | - | - |
Common questions
How do I fix CVE-2019-25570?
No published fix for CVE-2019-25570 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2019-25570 being actively exploited?
Not that we know of. CVE-2019-25570 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.22% is the estimated probability that it will be exploited in the next 30 days. That is higher than 12% of all scored CVEs.
How severe is CVE-2019-25570?
CVE-2019-25570 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-24.