snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00125.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Snes9X team Snes9X unknown
Version Status Constraints
1.63 affected —

No data.

No data.

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Vendors Products
Snes9x.com Subscribe
Snes9x Subscribe

Project Subscriptions

Vendors Products
Snes9x.com Subscribe
Snes9x Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/snes9xgit/snes9x/commit/96b366100172723f6314c40e237b370f4f7b59f4 cve-icon
https://github.com/snes9xgit/snes9x/issues/1035 cve-icon
https://karansaini.com/snes9x-oob-write/ cve-icon
History

Fri, 26 Jun 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Snes9x.com
Snes9x.com snes9x
Vendors & Products Snes9x.com
Snes9x.com snes9x

Thu, 18 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Write and Denial of Service via Crafted .Ups Files in Snes9X 1.63

Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Description snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-17T18:10:14.213Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-39199

cve-icon Vulnrichment

Updated: 2026-06-17T18:10:11.429Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T07:45:16Z

Weaknesses