جزئیات آسیب‌پذیری

Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.

• https://mstreet97.github.io/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.html technical-descriptionexploit
• https://www.musicpd.org/news/2026/05/mpd-0-24-11-released/ release-notespatch
• https://raw.githubusercontent.com/MusicPlayerDaemon/MPD/v0.24.11/NEWS release-notes
• https://github.com/MusicPlayerDaemon/MPD/releases/tag/v0.24.11 release-notes
• https://github.com/MusicPlayerDaemon/MPD/issues/2485 issue-tracking
• https://github.com/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274 patch
• https://www.vulncheck.com/advisories/music-player-daemon-stack-buffer-overflow-via-pcm-unpack-24be third-party-advisory