CVE-2026-49127

Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be

Published May 28, 2026 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Musicpd
Musicpd music Player Daemon
CPEs cpe:2.3:a:musicpd:music_player_daemon:*:*:*:*:*:*:*:*
Vendors & Products Musicpd
Musicpd music Player Daemon
Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:04 PM
Reserved
May 27, 2026, 5:40 PM
Status
Deferred
Published
May 28, 2026, 8:16 PM
Modified
Oct 26, 2026, 1:10 PM