WM Downloader 3.1.2.2 Buffer Overflow via Malformed M3U File
36Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 8.4epss 0.3%
from disclosure to weapon0 days
Published on NVDAug 30
metasploitJul 28
exploitation probability
0.3%top 74% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
WM Downloader · WM DownloaderReferences
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/wm_downloader_m3u.rbhttps://www.exploit-db.com/exploits/14497https://www.exploit-db.com/exploits/16642https://www.fortiguard.com/encyclopedia/ips/24038/wm-downloader-buffer-overflowhttps://www.vulncheck.com/advisories/wm-downloader-buffer-overflow-via-malformed-m3u-file