CVE-2026-49127
Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
8.8
Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
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.
- Record
CVE-2026-49127- CVSS 4.0
- 8.8 High
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 - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - Weakness
- CWE-193
- Updated
- 2026-11-02
EUVDEUVD-2026-33000
8.8
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.
- Record
EUVD-2026-33000- CVSS 4.0
- 8.8 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-p9r5-qpp4-rjg3
8.8
Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability...
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.
- Record
GHSA-p9r5-qpp4-rjg3- CVSS 4.0
- 8.8 High
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 - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - Weakness
- CWE-193
- Updated
- 2026-11-02
NVD
8.8
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.
- Record
CVE-2026-49127- CVSS 4.0
- 8.8 High
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 - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - Weakness
- CWE-193
- Updated
- 2026-11-02
OSV
8.8
Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be
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.
- Record
CVE-2026-49127- CVSS 4.0
- 8.8 High
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 - Weakness
- CWE-193
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-49127
8.8
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.
- Record
DEBIAN-CVE-2026-49127- CVSS 4.0
- 8.8 High
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 - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-49127
8.8
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.
- Record
UBUNTU-CVE-2026-49127- CVSS 4.0
- 8.8 High
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 - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mpdDebian:12 |
All versions, plus listed versions 0.23.12-10.23.14-10.23.14-20.23.15-10.23.15-1~bpo12+1 Show 12 moreShow less0.23.16-10.23.17-10.24-10.24.1-10.24.12-10.24.16-10.24.2-10.24.2-1~bpo12+10.24.3-10.24.4-10.24.6-10.24.8-1 |
None known |
mpdDebian:13 |
All versions, plus listed versions 0.24.12-10.24.16-10.24.4-10.24.6-10.24.8-1 |
None known |
mpdDebian:14 |
before 0.24.12-1, plus listed versions 0.24.4-10.24.6-10.24.8-1 |
0.24.12-1 |
mpdUbuntu:16.04:LTS |
All versions, plus listed versions 0.19.10-1build10.19.11-10.19.12-1 |
None known |
mpdUbuntu:18.04:LTS |
All versions, plus listed versions 0.20.9-20.20.9-2build20.20.11-10.20.11-1build10.20.13-10.20.17-10.20.18-10.20.18-1build1 |
None known |
mpdUbuntu:20.04:LTS |
All versions, plus listed versions 0.21.13-1build10.21.13-1build20.21.16-10.21.16-1build10.21.16-1build20.21.20-10.21.20-1build1 |
None known |
mpdUbuntu:22.04:LTS |
All versions, plus listed versions 0.22.6-1build10.23.3-20.23.5-1build10.23.5-1build20.23.5-1build30.23.5-1build40.23.5-1build50.23.5-1build7 |
None known |
mpdUbuntu:24.04:LTS |
All versions, plus listed versions 0.23.12-1build30.23.14-10.23.14-20.23.14-2build10.23.14-2build30.23.14-2build40.23.14-2build5 |
None known |
mpdUbuntu:25.10 |
All versions, plus listed versions 0.23.17-1build10.24.3-10.24.4-1 |
None known |
mpdUbuntu:26.10 |
All versions, plus listed versions 0.24.6-1build30.24.12-1 |
None known |
mpdUbuntu:26.04:LTS |
All versions, plus listed versions 0.24.4-10.24.6-10.24.6-1build10.24.6-1build20.24.6-1build3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-49127 is a high vulnerability (CVSS 8.8) in Musicplayerdaemon Mpd, published May 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. Fixed in mpd 0.24.12-1.
References
mstreet97.github.io/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.html
musicpd.org/news/2026/05/mpd-0-24-11-released
raw.githubusercontent.com/MusicPlayerDaemon/MPD/v0.24.11/NEWS
github.com/MusicPlayerDaemon/MPD/releases/tag/v0.24.11
github.com/MusicPlayerDaemon/MPD/issues/2485
github.com/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274
Show 8 moreShow less
vulncheck.com/advisories/music-player-daemon-stack-buffer-overflow-via-pcm-unpack-24be
nvd.nist.gov/vuln/detail/CVE-2026-49127
github.com/advisories/GHSA-p9r5-qpp4-rjg3
github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49127.json
github.com/MusicPlayerDaemon/MPD
security-tracker.debian.org/tracker/CVE-2026-49127
ubuntu.com/security/CVE-2026-49127
cve.org/CVERecord?id=CVE-2026-49127