What’s Vulnerable › Vulnerabilities

CVE-2026-49127: Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-10-26
• Weakness: CWE-193

Description

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.

Affected products

• MusicPlayerDaemon MPD: before 0.24.11 — fixed in 0.24.11

How to fix

Upgrade to a fixed version: MusicPlayerDaemon MPD 0.24.11. Check the vendor advisory for mitigations.

References

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

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