# CVE-2019-25606: Fast AVI MPEG Joiner 1.2.0812 Buffer Overflow Denial of Service

> Local attackers can crash Fast AVI MPEG Joiner by pasting oversized data into the License Name field, causing a denial of service.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Mar 2026
- **Updated:** 24 Mar 2026
- **Also known as:** GHSA-jq84-678m-q45p

## What is CVE-2019-25606?

CVE-2019-25606 is a medium-severity memory corruption vulnerability in Alloksoft Fast AVI MPEG Joiner, published on 22 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Fast AVI MPEG Joiner 1.2.0812 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized payload in the License Name field. Attackers can create a malicious text file containing 6000 bytes of data and paste it into the License Name input field to trigger a denial of service condition when the Register button is clicked.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-25606?


## How do I fix CVE-2019-25606?

No fix has been published for CVE-2019-25606 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-25606 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25606 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-25606 and fix it if it is affected.

What it is: CVE-2019-25606 is a medium-severity memory corruption vulnerability in Alloksoft Fast AVI MPEG Joiner, published on 22 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25606 exists.

Affected product: Alloksoft Fast AVI MPEG Joiner. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-25606/ (Markdown: https://insights.sbomify.com/CVE-2019-25606/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-25606
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-25606
- OSV: https://osv.dev/vulnerability/CVE-2019-25606

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-25606/
Summaries are generated and may contain mistakes; the official description above is the record.