Nullsoft Winamp before 5.24 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15225
http://www.infobyte.com.ar/down/isr-evilgrade-1.0.0.tar.gz
http://www.infobyte.com.ar/down/Francisco%20Amato%20-%20evilgrade%20-%20ENG.pdf
http://securitytracker.com/id?1020582
Source: Mitre, NVD
Published: 2008-08-01
Updated: 2026-06-16
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.01077