8.6

CVE-2018-25251: sourceforge snes9k 0.0.9z Out-of-bounds Write

CVSS: 8.6v4.0HighDeferred
Published 04-04-2026Last modified 06-04-2026
Open JSON

Vulnerability summary

CVE-2018-25251 is a high (CVSS 8.6) Out-of-bounds Write vulnerability in sourceforge snes9k 0.0.9z. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
44/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v4.0 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 04-04-2026
    PublishedVulnerability first disclosed.
  2. 06-04-2026
    Last modifiedVulnerability information updated.

Description

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 the Socket Port Number field via the Netplay Options menu to achieve code execution through SEH chain exploitation.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaselocalwindows_x86Unverified

    Snes9K 0.0.9z - Buffer Overflow (SEH)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Sourceforge1 product

1 vendor · 1 product

References

4 links