CVE-2019-25603Public exploit

Local code execution via license string overflow

Published Mar 22, 2026 · Updated Mar 22, 2026

Out-of-bounds write in Socusoft TuneClone Audio Converter 2.20 allows local users to execute arbitrary code via a crafted license string. The license-entry path accepts a 6,000-byte Name and Code payload without enforcing its destination boundary, allowing input after 1,056 bytes to overwrite NSEH and SEH control data. The attacker must access the Windows desktop interface and submit the string; successful control-flow redirection runs code in the application user's context.

CVSS severity8.4
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Socusoft TuneClone Audio Converter 2.20 allows local users to execute arbitrary code via a crafted license string. The license-entry path accepts a 6,000-byte Name and Code payload without enforcing its destination boundary, allowing input after 1,056 bytes to overwrite NSEH and SEH control data. The attacker must access the Windows desktop interface and submit the string; successful control-flow redirection runs code in the application user's context.

The record

CVE
CVE-2019-25603
Published
Mar 22, 2026
Updated
Mar 22, 2026
Vendor
Socusoft
Product
TuneClone Audio Converter
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Socusoft · TuneClone Audio Converterversion=2.20

Published CVSS scores

8.6VulnCheck CNACVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.4VulnCheck CNACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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