What is CVE-2016-20039?

CVE-2016-20039 is a high-severity vulnerability in Mamedev Mess Emulator, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-28.

How severe is CVE-2016-20039?

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

Buffer overflow in Mamedev Mess Emulator

CVE-2016-20039

Multi Emulator Super System 0.154-3.1 contains a buffer overflow vulnerability in the gamma parameter handling that allows local attackers to crash the application or execute arbitrary code. Attackers can supply an oversized gamma paramete…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.6th 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

Mamedev Mess Emulator — versions 0.154-3.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-39673 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: Multi Emulator Super System 0.154-3.1 Buffer Overflow (third-party-advisory)

Frequently asked questions

What is CVE-2016-20039?: CVE-2016-20039 is a high-severity vulnerability in Mamedev Mess Emulator, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-28.
How severe is CVE-2016-20039?: High severity. CVSS v3 base score is 8.4 out of 10.