What is CVE-2019-25603?

CVE-2019-25603 is a high-severity vulnerability in Tuneclone, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-22.

How severe is CVE-2019-25603?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Tuneclone

CVE-2019-25603

TuneClone 2.20 contains a structured exception handler (SEH) buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious license code string. Attackers can craft a payload with a controlled…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tuneclone — versions 2.20

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-47012 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: TuneClone 2.20 Structured Exception Handler Buffer Overflow (third-party-advisory)

Frequently asked questions

What is CVE-2019-25603?: CVE-2019-25603 is a high-severity vulnerability in Tuneclone, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-22.
How severe is CVE-2019-25603?: High severity. CVSS v3 base score is 8.4 out of 10.