Home/CVE/RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the ap
CVE

CVE-2019-25570

RealTerm Serial Terminal 2.0.0.70 contains a denial of service vulnerability that allows local attackers to crash the ap

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.

MEDIUM · CVSS 5.5 EPSS 0.00037
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1260Improper Handling of Overlap Between Protected Memory Ranges
▤

Affected Products & Versions

1
crun realtermall versions
⚠

Public Exploits & PoCs

1
pocwww.exploit-db.com · 46390www.exploit-db.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · disclosure@vulncheck.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Mar 2026 · 01:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://realterm.sourceforge.io/Product
https://sourceforge.net/projects/realterm/files/Product
https://www.vulncheck.com/advisories/realterm-serial-terminal-denial-of-service-via-port-fieldThird Party Advisory
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