CVE-2021-28421
FluidSynth 2.1.7 contains a use after free vulnerability in sfloader/fluid_sffile.c that can...
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-21417. Reason: This candidate is a duplicate of CVE-2021-21417. Notes: All CVE users should reference CVE-2021-21417 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
What each source reports
OSV Score usedUBUNTU-CVE-2021-28421
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-21417. Reason: This candidate is a duplicate of CVE-2021-21417. Notes: All CVE users should reference CVE-2021-21417 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.
- Record
UBUNTU-CVE-2021-28421- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
CVE List No score
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-21417. Reason: This candidate is a duplicate of CVE-2021-21417. Notes: All CVE users should reference CVE-2021-21417 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
- Record
CVE-2021-28421- Updated
- 2026-11-02
EUVDEUVD-2021-15100 No score
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-21417. Reason: This candidate is a duplicate of CVE-2021-21417. Notes: All CVE users should reference CVE-2021-21417 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
- Record
EUVD-2021-15100- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-76gm-q7xq-v743 No score
FluidSynth 2.1.7 contains a use after free vulnerability in sfloader/fluid_sffile.c that can...
FluidSynth 2.1.7 contains a use after free vulnerability in sfloader/fluid_sffile.c that can result in arbitrary code execution or a denial of service (DoS) if a malicious soundfont2 file is loaded into a fluidsynth library.
- Record
GHSA-76gm-q7xq-v743- Weakness
- CWE-416
- Updated
- 2026-11-02
NVD No score
Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2021-21417. Reason: This candidate is a duplicate of CVE-2021-21417. Notes: All CVE users should reference CVE-2021-21417 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
- Record
CVE-2021-28421- Updated
- 2026-11-02
OSVopenSUSE-SU-2021:0553-1 No score
Security update for fluidsynth
This update for fluidsynth fixes the following issues:
- CVE-2021-28421: Fix use after free vulnerability in file loader (boo#1184705)
- Record
openSUSE-SU-2021:0553-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2021:0570-1 No score
Security update for fluidsynth
This update for fluidsynth fixes the following issues:
- CVE-2021-28421: Fix use after free vulnerability in file loader (boo#1184705)
This update was imported from the openSUSE:Leap:15.2:Update update project.
- Record
openSUSE-SU-2021:0570-1- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fluidsynthopenSUSE:Leap 15.2 |
before 1.1.11-lp152.4.3.1 | 1.1.11-lp152.4.3.1 |
fluidsynthSUSE:Package Hub 15 SP2 |
before 1.1.11-bp152.4.3.1 | 1.1.11-bp152.4.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-28421 has been rejected by its source and should not be treated as a live vulnerability, published April 13, 2021. Fixed in fluidsynth 1.1.11-lp152.4.3.1.