CVE catalog
CVE-2025-56225
fluidsynth: CVE-2025-56225
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.46% · Oct 25, 2026
fluidsynth-2.4.6 and earlier versions is vulnerable to Null pointer dereference in fluid_synth_monopoly.c, that can be triggered when loading an invalid midi file.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | fluidsynth | sid | 2.6.1+dfsg-2 | fixed |
| Debian | fluidsynth | forky | 2.6.1+dfsg-2 | fixed |
| Debian | fluidsynth | trixie | 2.4.4+dfsg-1+deb13u3 | fixed |
| Debian | fluidsynth | bookworm | 2.3.1-2 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.3-2.1 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.4-1 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.4-1build1 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.4-1build2 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.4-1build3 | vulnerable |
| Ubuntu | fluidsynth | pro | 2.3.4-1ubuntu0.1~esm1 | vulnerable |
| Opensuse | musescore | tumbleweed | 4.7.4-1.1 | fixed |
| Opensuse | fluidsynth | leap 16.0 | 2.3.5-160000.3.1 | fixed |
| Opensuse | fluidsynth | tumbleweed | 2.5.2-2.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | fluidsynth | source | sid | 2.4.7+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | fluidsynth | source | forky | 2.4.7+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | fluidsynth | source | trixie | 2.4.4+dfsg-1+deb13u2 | not yet assigned | Not reported | Not reported |
| Debian | fluidsynth | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Opensuse | musescore | rpm | tumbleweed | 4.7.4-1.1 | Not reported | OPENSUSE-SU-2026:11496-1 | Not reported |
| Opensuse | fluidsynth | rpm | leap 16.0 | 2.3.5-160000.3.1 | Not reported | OPENSUSE-SU-2026:20291-1 | Not reported |
| Opensuse | fluidsynth | rpm | tumbleweed | 2.5.2-2.1 | Not reported | OPENSUSE-SU-2026:10038-1 | Not reported |
Notes
[bookworm] fluidsynth: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [fluidsynth]Affected
Details (2)
2.3.1-2· amd64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
2.3.1-2· arm64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
- [libfluidsynth3]Affected
Source package: [fluidsynth]
Details (2)
2.3.1-2· amd64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
2.3.1-2· arm64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
- [libfluidsynth-dev]Affected
Source package: [fluidsynth]
Details (2)
2.3.1-2· amd64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
2.3.1-2· arm64 · bookwormAffected
dsa · fluidsynth · debian · bookworm; dsa · fluidsynth · debian · 12
[openSUSE Tumbleweed]
- [fluidsynth-devel]Unknown
Source package: [fluidsynth]
Details (1)
2.5.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-2.1Version impact unknown
dsa · fluidsynth · opensuse · tumbleweed
- [libfluidsynth3]Unknown
Source package: [fluidsynth]
Details (1)
2.5.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-2.1Version impact unknown
dsa · fluidsynth · opensuse · tumbleweed
- [libfluidsynth3-32bit]Unknown
Source package: [fluidsynth]
Details (1)
2.5.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-2.1Version impact unknown
dsa · fluidsynth · opensuse · tumbleweed
- [musescore-fonts]Unknown
Source package: [musescore]
Details (1)
4.7.4-2.1· noarch · tumbleweedUnknown · Fixed:
4.7.4-1.1Version impact unknown
dsa · musescore · opensuse · tumbleweed
- [fluidsynth]Fixed
Source package: [fluidsynth]
Details (1)
2.5.7-1.1· x86_64 · tumbleweedFixed · Fixed:
2.5.2-2.1dsa · fluidsynth · opensuse · tumbleweed
- [musescore]Fixed
Source package: [musescore]
Details (1)
4.7.4-2.1· x86_64 · tumbleweedFixed · Fixed:
4.7.4-1.1dsa · musescore · opensuse · tumbleweed
[Debian 13 (Trixie)]
- [fluidsynth]Fixed
Details (2)
2.4.4+dfsg-1+deb13u2· amd64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
2.4.4+dfsg-1+deb13u2· arm64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
- [libfluidsynth3]Fixed
Source package: [fluidsynth]
Details (2)
2.4.4+dfsg-1+deb13u2· amd64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
2.4.4+dfsg-1+deb13u2· arm64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
- [libfluidsynth-dev]Fixed
Source package: [fluidsynth]
Details (2)
2.4.4+dfsg-1+deb13u2· amd64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
2.4.4+dfsg-1+deb13u2· arm64 · trixieFixed · Fixed:
2.4.4+dfsg-1+deb13u2dsa · fluidsynth · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11496-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-56225]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-56225]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10038-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11496-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20291-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-56225]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-56225.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]