CVE-2018-25251
CVE-2018-25251 is a high-severity vulnerability with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v4: 8.6
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2018-21754
- Weakness: CWE-787
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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 the Socket Port Number field via the Netplay Options menu to achieve code execution through SEH chain exploitation.
- How severe is CVE-2018-25251?
- CVE-2018-25251 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-25251 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2018-25251?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2018-25251 have an EU (EUVD) identifier?
- Yes. CVE-2018-25251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21754.
- When was CVE-2018-25251 published?
- CVE-2018-25251 was published on 2026-04-04 and last updated on 2026-06-17.
References
- https://sourceforge.net/projects/snes9k/
- https://sourceforge.net/projects/snes9k/files/latest/download
- https://www.exploit-db.com/exploits/45598
- https://www.vulncheck.com/advisories/snes9k-9z-buffer-overflow-seh-via-netplay-socket
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