CVE-2026-39199

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

CVSS 3.1

2.9CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2026-06-17

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/snes9xgit/snes9x/commit/96b366100172723f6314c40e237b370f4f7b59f4
• https://github.com/snes9xgit/snes9x/issues/1035
• https://karansaini.com/snes9x-oob-write/

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