CVE-2016-20039 | mamedev Mess Emulator 0.154-3.1 Parameter gamma out-of-bounds write (Exploit 39673 / EDB-39673)

VDB-354088 · CVE-2016-20039 · EXPLOIT 39673 MAMEDEV MESS EMULATOR 0.154-3.1 PARAMETER GAMMA OUT-OF-BOUNDS WRITE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.6 $0-$5k 1.59+ Summaryinfo A vulnerability classified as critical was found in mamedev Mess Emulator 0.154-3.1. This impacts an unknown function of the component Parameter Handler. Executing a manipulation of the argument gamma can lead to out-of-bounds write. This vulnerability appears as CVE-2016-20039. The attack requires local access. In addition, an exploit is available. Detailsinfo A vulnerability classified as critical was found in mamedev Mess Emulator 0.154-3.1. This vulnerability affects an unknown function of the component Parameter Handler. The manipulation of the argument gamma with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: 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 parameter value to overflow the stack buffer and overwrite the instruction pointer with a controlled address to achieve code execution. The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2016-20039 since 03/28/2026. The exploitation appears to be easy. The attack needs to be approached locally. Technical details and also a public exploit are known. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at Exploit-DB (39673). Productinfo Vendor mamedev Name Mess Emulator Version 0.154-3.1 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.8 VulDB Meta Temp Score: 6.6 VulDB Base Score: 5.3 VulDB Temp Score: 4.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.4 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Out-of-bounds write CWE: CWE-787 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 EPSS Score: 🔒 EPSS Percentile: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Exploit-DB: 🔒 Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/28/2026 Advisory disclosed 03/28/2026 +0 days CVE reserved 03/28/2026 +0 days VulDB entry created 03/28/2026 +0 days VulDB entry last update Sourcesinfo Advisory: 39673 Status: Not defined CVE: CVE-2016-20039 (🔒) GCVE (CVE): GCVE-0-2016-20039 GCVE (VulDB): GCVE-100-354088 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/28/2026 21:49 Changes: 03/28/2026 21:49 (80) Complete: 🔍 Cache ID: 99:0D1:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸