CVE-2019-25363Public exploit

Application crash via oversized license input

Published Feb 18, 2026 · Updated Feb 18, 2026

Stack-based buffer overflow in Allok Soft Inc. WMV to AVI MPEG DVD WMV Converter 4.6.1217 allows local users to crash the application. The published proof of concept fills the combined License Name and License Code field with 6,000 A bytes; the vulnerable license-processing path does not safely bound that oversized input. Exploitation requires interactive access to the Windows GUI and clicking OK; the demonstrated consequence is a process crash, not code execution.

CVSS severity8.4
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in Allok Soft Inc. WMV to AVI MPEG DVD WMV Converter 4.6.1217 allows local users to crash the application. The published proof of concept fills the combined License Name and License Code field with 6,000 A bytes; the vulnerable license-processing path does not safely bound that oversized input. Exploitation requires interactive access to the Windows GUI and clicking OK; the demonstrated consequence is a process crash, not code execution.

The record

CVE
CVE-2019-25363
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
Allok Soft Inc.
Product
WMV to AVI MPEG DVD WMV Converter
Classifications
CWE-121, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.6.1217

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Allok Soft Inc. · WMV to AVI MPEG DVD WMV Converterversion=4.6.1217

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.4VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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 Flood

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo