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.
History

Fri, 29 May 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 May 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Musicplayerdaemon
Musicplayerdaemon mpd
Vendors & Products Musicplayerdaemon
Musicplayerdaemon mpd

Thu, 28 May 2026 21:30:00 +0000


Thu, 28 May 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
Weaknesses CWE-193
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-05-28T18:59:13.786Z

Updated: 2026-05-29T19:14:38.903Z

Reserved: 2026-05-27T17:40:12.738Z

Link: CVE-2026-49127

cve-icon Vulnrichment

Updated: 2026-05-29T19:14:34.886Z

cve-icon NVD

Status : Deferred

Published: 2026-05-28T20:16:26.387

Modified: 2026-05-29T14:07:47.980

Link: CVE-2026-49127

cve-icon Redhat

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