What’s Vulnerable › Vulnerabilities

CVE-2019-25570: RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-21 · updated 2026-06-17
• Weakness: CWE-1260

Description

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

• RealTerm: Serial Terminal: 2.0.0.70

References

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

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