CVE-2026-39199

LOW
Published Jun 17, 2026 Modified Jun 17, 2026 CWE-787

Description

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

CVSS v3.1 Score

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

EPSS — Exploit Prediction

0.0013
Probability of exploitation
0.03%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

References

Frequently Asked Questions

What is CVE-2026-39199? +
snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file. It has a CVSS v3.1 base score of 2.9 (LOW).
How severe is CVE-2026-39199? +
CVE-2026-39199 has a CVSS v3.1 score of 2.9 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0013, placing it in the 0th percentile for exploitation probability.
How do I check if I'm vulnerable to CVE-2026-39199? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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