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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WM Downloader | WM Downloader | ≤ 3.1.2.2 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
WM Downloader 3.1.2.2 Buffer Overflow
exploit/windows/fileformat/wm_downloader_m3u
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/wm_downloader_m3u.rb exploit
- https://www.exploit-db.com/exploits/14497 exploit
- https://www.exploit-db.com/exploits/16642 exploit
- https://www.fortiguard.com/encyclopedia/ips/24038/wm-downloader-buffer-overflow third-party-advisory
- https://www.vulncheck.com/advisories/wm-downloader-buffer-overflow-via-malformed-m3u-file third-party-advisory