CVE-2026-49127Public exploitNetwork attack vector

Daemon crash via PCM decoder off-by-one write

Published May 28, 2026 · Updated May 28, 2026

Stack buffer overflow in Music Player Daemon before 0.24.11 allows remote attackers to crash the daemon through malicious L24 audio. pcm_unpack_24be processes a full 4,096-byte FIFO as 1,366 samples but receives storage for 1,365, causing a four-byte stack write. An attacker needs MPD protocol access and an attacker-controlled HTTP audio source; unhardened builds also incur adjacent stack corruption.

CVSS severity8.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in Music Player Daemon before 0.24.11 allows remote attackers to crash the daemon through malicious L24 audio. pcm_unpack_24be processes a full 4,096-byte FIFO as 1,366 samples but receives storage for 1,365, causing a four-byte stack write. An attacker needs MPD protocol access and an attacker-controlled HTTP audio source; unhardened builds also incur adjacent stack corruption.

The record

CVE
CVE-2026-49127
Published
May 28, 2026
Updated
May 28, 2026
Vendor
Music Player Daemon
Product
Music Player Daemon
Classifications
CWE-193, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.24.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Music Player Daemon · Music Player Daemonversion=0 <0.24.11

Published CVSS scores

8.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
8.8VulnCheckCVSS: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 describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-193Off-by-one Error
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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