CVE-2026-29508

Description

ReadyMedia (formerly MiniDLNA) versions 1.3.0 through 1.3.3 contain a stack-based buffer overflow vulnerability that allows remote attackers to corrupt stack memory by crafting a malicious DFF audio file with an oversized PROP chunk size value that is used unvalidated to allocate a variable-length stack array and read file data into it. Attackers can place a crafted DFF file in a directory monitored by ReadyMedia to trigger automatic parsing via inotify, achieving remote code execution on unprotected builds or denial of service on hardened builds with stack protections.

References

• https://sourceforge.net/projects/minidlna/
• https://www.asus.com/networking-iot-servers/wifi-routers/asus-gaming-routers/rt-ax86u/helpdesk_bios?model2Name=RT-AX86-Series-RT-AX86U-RT-AX86S
• https://www.kr3bz.wtf/posts/minidlna-unbounded-vla-to-rce/
• https://www.vulncheck.com/advisories/readymedia-stack-buffer-overflow-via-dff-parser