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CVE-2023-44428

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

7.8 HighFix available

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.53%Up 0.5 points since May 3, 2024
90%50%10%1%

What each source reports

CVE List Score used 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
CVE-2023-44428
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-122
Updated
2026-11-02
EUVDEUVD-2023-48768 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
EUVD-2023-48768
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-99f4-c4w3-4vm2 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This...

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
GHSA-99f4-c4w3-4vm2
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-122, CWE-787
Updated
2026-11-02
NVD 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
CVE-2023-44428
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-122, CWE-787
Updated
2026-11-02
OSV 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
CVE-2023-44428
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2023-44428 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
DEBIAN-CVE-2023-44428
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-44428 7.8

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

Record
UBUNTU-CVE-2023-44428
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
musescore2
Debian:12
All versions, plus listed versions
2.3.2+dfsg4-152.3.2+dfsg4-162.3.2+dfsg4-17
None known
musescore2
Debian:13
before 2.3.2+dfsg4-16
2.3.2+dfsg4-16
musescore3
Debian:12
All versions, plus listed versions
3.2.3+dfsg2-163.2.3+dfsg2-173.2.3+dfsg2-183.2.3+dfsg2-193.2.3+dfsg2-203.2.3+dfsg2-21
None known
musescore3
Debian:13
before 3.2.3+dfsg2-18
3.2.3+dfsg2-18
musescore3
Debian:14
before 3.2.3+dfsg2-18
3.2.3+dfsg2-18
musescore
Ubuntu:16.04:LTS
All versions, plus listed versions
2.0.2+dfsg-12.0.2+dfsg-22.0.2+dfsg-2build12.0.2+dfsg-2ubuntu0.1
None known
musescore
Ubuntu:18.04:LTS
All versions, plus listed versions
2.1.0+dfsg1-0.22.1.0+dfsg1-12.1.0+dfsg2-12.1.0+dfsg2-1build12.1.0+dfsg3-32.1.0+dfsg3-3build1
None known
musescore
Ubuntu:20.04:LTS
All versions, plus listed versions
3.2.3+dfsg1-13.2.3+dfsg1-23.2.3+dfsg1-33.2.3+dfsg1-43.2.3+dfsg1-4build1
None known
musescore2
Ubuntu:22.04:LTS
All versions, plus listed versions
2.3.2+dfsg4-15
None known
musescore3
Ubuntu:22.04:LTS
All versions, plus listed versions
3.2.3+dfsg2-11
None known
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Affected packages
PackageAffectedFixed
musescore2
Ubuntu:24.04:LTS
All versions, plus listed versions
2.3.2+dfsg4-152.3.2+dfsg4-15build22.3.2+dfsg4-15build3
None known
musescore3
Ubuntu:24.04:LTS
All versions, plus listed versions
3.2.3+dfsg2-163.2.3+dfsg2-16build33.2.3+dfsg2-16build43.2.3+dfsg2-16build5
None known
musescore2
Ubuntu:25.10
All versions, plus listed versions
2.3.2+dfsg4-15build32.3.2+dfsg4-16
None known
musescore3
Ubuntu:25.10
All versions, plus listed versions
3.2.3+dfsg2-173.2.3+dfsg2-183.2.3+dfsg2-19
None known
musescore2
Ubuntu:26.10
All versions, plus listed versions
2.3.2+dfsg4-17
None known
musescore3
Ubuntu:26.10
All versions, plus listed versions
3.2.3+dfsg2-21
None known
musescore2
Ubuntu:26.04:LTS
All versions, plus listed versions
2.3.2+dfsg4-162.3.2+dfsg4-17
None known
musescore3
Ubuntu:26.04:LTS
All versions, plus listed versions
3.2.3+dfsg2-193.2.3+dfsg2-21
None known

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-44428 is a high vulnerability (CVSS 7.8) in Musescore, published May 3, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. Fixed in musescore2 2.3.2+dfsg4-16.

References

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