What is the CVSS score of EUVD-2019-19888?

EUVD-2019-19888 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Realterm are affected by EUVD-2019-19888?

Organizations using RealTerm Serial Terminal 2.0.0.70 should be aware of moderate risk from CVE-2019-25570 rated CVSS 5.5. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for EUVD-2019-19888?

Yes, a public proof-of-concept exploit is available for EUVD-2019-19888. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate EUVD-2019-19888?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Realterm EUVD-2019-19888

| CVE-2019-25570 MEDIUM

Improper Handling of Overlap Between Protected Memory Ranges (CWE-1260)

2026-03-21 VulnCheck

GHSA-8m9x-gfww-f5vw

Denial Of Service Realterm

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

PoC Detected

Mar 24, 2026 - 20:42 vuln.today

Public exploit code

EUVD ID Assigned

Mar 21, 2026 - 13:00 euvd

EUVD-2019-19888

Analysis Generated

Mar 21, 2026 - 13:00 vuln.today

CVE Published

Mar 21, 2026 - 12:47 nvd

MEDIUM 5.5

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-1260. 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. Affected products include: Realterm.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.