A buffer overflow in Synthesia before 10.7.5567, when a non-Latin locale is used, allows…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
A buffer overflow in Synthesia before 10.7.5567, when a non-Latin locale is used, allows user-assisted attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes. This file is mishandled during a deletion attempt. In Synthesia before 10.9, an improper path handling allows local attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:synthesiagame:synthesia:*:*:*:*:*:*:*:* | up to 10.8 | Vulnerable | Synthesiagame |
- cpe:2.3:a:synthesiagame:synthesia:*:*:*:*:*:*:*:* Versions up to 10.8 Vulnerable ·Synthesiagame
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33897
- 2026-10-03 Alias added: GHSA-qqw3-9x22-v9qf
References
Sources
- CVE-2021-33897 · CVE Program
- CVE-2021-33897 · NVD
- FIRST EPSS
- GHSA-qqw3-9x22-v9qf · GitHub Advisory Database · CC BY 4.0
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