CVE-2019-25328Public exploit

Application crash via oversized registration code

Published Feb 12, 2026 · Updated Feb 12, 2026

Stack-based buffer overflow in XnSoft XnConvert 1.82 allows local users to crash the application through the registration code field. The registration dialog accepts a 9,000-byte repeated-character string in its user name and registration code field without enforcing a safe input bound. The published proof of concept requires an interactive Windows 7 session, pasting generated text into the dialog, acknowledging an invalid-code message, and clicking OK; the documented consequence is an application crash only.

CVSS severity6.7
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in XnSoft XnConvert 1.82 allows local users to crash the application through the registration code field. The registration dialog accepts a 9,000-byte repeated-character string in its user name and registration code field without enforcing a safe input bound. The published proof of concept requires an interactive Windows 7 session, pasting generated text into the dialog, acknowledging an invalid-code message, and clicking OK; the documented consequence is an application crash only.

The record

CVE
CVE-2019-25328
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
XnSoft
Product
XnConvert
Classifications
CWE-121, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=1.82

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

XnSoft · XnConvertversion=1.82

Published CVSS scores

6.7VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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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-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

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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