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Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-44428MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity heap buffer overflow in MuseScore from MuseScore. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.0)7.8High
Exploit odds (30 days)0.5%top 54.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12musescore2no fix listedDEBIAN-CVE-2023-44428
Debian:13musescore22.3.2+dfsg4-16DEBIAN-CVE-2023-44428
Debian:12musescore3no fix listedDEBIAN-CVE-2023-44428
Debian:13musescore33.2.3+dfsg2-18DEBIAN-CVE-2023-44428
Debian:14musescore33.2.3+dfsg2-18DEBIAN-CVE-2023-44428
Ubuntu:22.04:LTSmusescore2no fix listedUBUNTU-CVE-2023-44428
Ubuntu:24.04:LTSmusescore2no fix listedUBUNTU-CVE-2023-44428
Ubuntu:25.10musescore2no fix listedUBUNTU-CVE-2023-44428
Ubuntu:26.04:LTSmusescore2no fix listedUBUNTU-CVE-2023-44428
Ubuntu:26.10musescore2no fix listedUBUNTU-CVE-2023-44428
Ubuntu:22.04:LTSmusescore3no fix listedUBUNTU-CVE-2023-44428
Ubuntu:24.04:LTSmusescore3no fix listedUBUNTU-CVE-2023-44428
Ubuntu:25.10musescore3no fix listedUBUNTU-CVE-2023-44428
Ubuntu:26.04:LTSmusescore3no fix listedUBUNTU-CVE-2023-44428
Ubuntu:26.10musescore3no fix listedUBUNTU-CVE-2023-44428

Affected products (as reported)

VendorProductVersions
MuseScore MuseScore 4.0.2.230651553

Weakness: CWE-122 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References