What is CVE-2018-25251?

CVE-2018-25251 is a high-severity vulnerability in Sourceforge Snes9k 0.0.9z, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-04.

How severe is CVE-2018-25251?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Sourceforge Snes9k 0.0.9z

CVE-2018-25251

Snes9K 0.0.9z contains a buffer overflow vulnerability in the Netplay Socket Port Number field that allows local attackers to trigger a structured exception handler (SEH) overwrite. Attackers can craft a malicious payload and paste it into…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Sourceforge Snes9k 0.0.9z — versions 0.0.9z

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-45598 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: Snes9K 0.0.9z Buffer Overflow SEH via Netplay Socket (third-party-advisory)

Frequently asked questions

What is CVE-2018-25251?: CVE-2018-25251 is a high-severity vulnerability in Sourceforge Snes9k 0.0.9z, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-04.
How severe is CVE-2018-25251?: High severity. CVSS v3 base score is 8.4 out of 10.