# CVE-2026-29508: ReadyMedia 1.3.0 - 1.3.3 Stack Buffer Overflow via DFF Parser

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://www.asus.com/networking-iot-servers/wifi-routers/asus-gaming-routers/rt-ax86u/helpdesk_bios?model2Name=RT-AX86-Series-RT-AX86U-RT-AX86S

## Affected products and versions

- ReadyMedia / ReadyMedia (MiniDLNA): ≥ 1.3.0; ≤ 1.3.3 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 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; source: CNA: VulnCheck

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-121

## Exploit evidence

- exploit: https://www.kr3bz.wtf/posts/minidlna-unbounded-vla-to-rce/ (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-AX86S (CNA: VulnCheck; patch)

- https://sourceforge.net/projects/minidlna/ (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/readymedia-stack-buffer-overflow-via-dff-parser (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-29508; retrieved 2026-11-02; source updated 2026-11-02

Revision: 1c40e88cb0ddee8ef6006ce21281e98e3dde60de4b9f0780808dfd01a9043e6b

Canonical: https://y2.dev/cve/CVE-2026-29508

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