CVE-2026-29508
ReadyMedia 1.3.0 - 1.3.3 Stack Buffer Overflow via DFF Parser
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| ReadyMedia (MiniDLNA) ReadyMedia |
≥ 1.3.0; ≤ 1.3.3 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.8 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CNA: VulnCheck |
Exploit evidence
- https://www.kr3bz.wtf/posts/minidlna-unbounded-vla-to-rce/
exploit · CNA: VulnCheck
References
- https://www.kr3bz.wtf/posts/minidlna-unbounded-vla-to-rce/CNA: VulnCheck · technical-description, exploit
- https://www.asus.com/networking-iot-servers/wifi-routers/asus-gaming-routers/rt-ax86u/helpdesk_bios?model2Name=RT-AX86-Series-RT-AX86U-RT-AX86SCNA: VulnCheck · patch
- https://sourceforge.net/projects/minidlna/CNA: VulnCheck · product
- https://www.vulncheck.com/advisories/readymedia-stack-buffer-overflow-via-dff-parserCNA: VulnCheck · third-party-advisory
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