Security readout for executives and security teams
CVE-2016-20039 is a local buffer overflow in Multi Emulator Super System / MESS Emulator version 0.154-3.1. A local attacker who can provide an oversized gamma parameter may crash the application or potentially execute arbitrary code in the context of the running process. Exposure is most likely limited to systems where Multi Emulator Super System / MESS Emulator 0.154-3.1 is installed and where local users, launch wrappers, scripts, shortcuts, or other local workflows can pass emulator parameters. The bundle does not indicate an internet-facing service exposure. Prioritize remediation on shared workstations, lab systems, or any endpoint where untrusted local users can launch the emulator or influence its parameters. This is not described as remotely exploitable, but the potential for local code execution makes it a high-severity endpoint risk. Mitigation focus: Inventory systems for mamedev Mess Emulator / Multi Emulator Super System version 0.154-3.1.; Remove the vulnerable version where it is not required.; Check official mamedev/vendor guidance for a fixed or unaffected release before upgrading; the bundle does not provide patch evidence..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-39673CVE reference · exploit
- VulnCheck Advisory: Multi Emulator Super System 0.154-3.1 Buffer OverflowCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.