High 8.4Published Mar 22, 2026

CVE-2019-25603TuneClone 2.20 Structured Exception Handler Buffer Overflow

Updated under an hour ago (Oct 26, 2026, 9:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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 buffer, NSEH jump instruction, and SEH handler address pointing to a ROP gadget, then paste it into the license code field to trigger code execution and establish a bind shell.

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Mar 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TuneClone TuneClone tuneclone:tuneclone (from the name)	2.20	CNA record

References

References

https://www.exploit-db.com/exploits/47012	exploit
http://www.tuneclone.com/	product
http://www.tuneclone.com/tuneclone_setup.exe	product
https://www.vulncheck.com/advisories/tuneclone-structured-exception-handler-buffer-overflow	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.