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Fencer Vulns
high 7.0

CVE-2023-26923 json

Musescore 3.0 to 4.0.1 has a stack buffer overflow vulnerability that occurs when reading misconfigured midi files.

published 2023-03-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30714

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

Musescore 3.0 to 4.0.1 has a stack buffer overflow vulnerability that occurs when reading misconfigured midi files. If attacker can additional information, attacker can execute arbitrary code.

Patch / fix

  • musescore3 Debian 14, Debian 13 3.2.3+dfsg2-18

debian advisories DEBIAN-CVE-2023-26923

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/musescore/MuseScore/issues/16346 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness

References

Sources

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.