Buffer overflow in Crun Realterm
CVE-2019-25569
RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attacke…
Vulnerability class: Buffer Overflow
EPSS: 0.002 (8.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Crun Realterm — versions 2.0.0.70
- Realterm Realterm: Serial Terminal — versions 2.0.0.70
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2019-25569?
- CVE-2019-25569 is a medium-severity vulnerability in Crun Realterm, classified under Out-of-bounds Write. CVSS score: 6.2/10. Published 2026-03-21.
- How severe is CVE-2019-25569?
- Medium severity. CVSS v3 base score is 6.2 out of 10.