CVE-2026-49127 json
Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
published 2026-05-28 5 mo ago modified 2026-11-08 26 h ago also EUVD-2026-33000
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- mstreet97.github.io https://mstreet97.github.io/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | 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 |
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
| CNA | 4.0 | 8.8 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- MusicPlayerDaemon MPD
Classification
- Weakness
-
- CWE-193 Off-by-one Error
References
-
musicpd.org
/news/2026/05/mpd-0-24-11-released/
release-notes, patch
-
github.com
/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274
patch
-
mstreet97.github.io
/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.htm
technical-description, exploit
-
raw.githubusercontent.com
/MusicPlayerDaemon/MPD/v0.24.11/NEWS
release-notes
-
github.com
/MusicPlayerDaemon/MPD/releases/tag/v0.24.11
release-notes
-
github.com
/MusicPlayerDaemon/MPD/issues/2485
issue-tracking
-
vulncheck.com
/advisories/music-player-daemon-stack-buffer-overflow-via-pcm-unpack-24be
third-party-advisory
Sources
- CVE List CVE-2026-49127
- NVD CVE-2026-49127
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.