snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.
Priority MEDIUM 48CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00125 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Snes9X team | Snes9X | 1.63 | — | No fix listed | CNA |
- Snes9X VendorSnes9X team Affected 1.63 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-39199
- 2026-10-03 Alias added: GHSA-4qcp-g757-95hj
References
Sources
- CVE-2026-39199 · CVE Program
- CVE-2026-39199 · NVD
- FIRST EPSS
- GHSA-4qcp-g757-95hj · GitHub Advisory Database · CC BY 4.0
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