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Vulnerability IntelligenceCVE-2018-25251

CVE-2018-25251

HIGH8.6

Snes9K 0.0.9z Buffer Overflow SEH via Netplay Socket

Published Apr 4, 2026

Modified Yesterday

Details

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.

References

https://sourceforge.net/projects/snes9k/

https://sourceforge.net/projects/snes9k/files/latest/download

https://www.cve.org/CVERecord?id=CVE-2018-25251

https://www.exploit-db.com/exploits/45598

https://www.vulncheck.com/advisories/snes9k-9z-buffer-overflow-seh-via-netplay-socket

CVSS Analysis

CVSS v4.0

8.6

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

HighVI:H

Vuln. Availability

HighVA:H

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

8.6/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weakness Type (CWE)

Memory Safety

Out-of-bounds Write

Ecosystems

Timeline

PublishedApr 4, 2026

ModifiedApr 4, 2026

CVE-2018-25251 | Mondoo Vulnerability Intelligence