Vulnerability-Lookup

GHSA-8VXC-WFFQ-WGMW

Vulnerability from github – Published: 2026-03-28 12:30 – Updated: 2026-03-28 12:30

Details

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.

Severity

8.4 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.6 (High)


                  
                    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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-20039"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-28T12:15:59Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-8vxc-wffq-wgmw",
  "modified": "2026-03-28T12:30:29Z",
  "published": "2026-03-28T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-20039"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/39673"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/multi-emulator-super-system-buffer-overflow"
    },
    {
      "type": "WEB",
      "url": "http://mamedev.org"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2016-20039 (GCVE-0-2016-20039)

Vulnerability from cvelistv5 – Published: 2026-03-28 11:58 – Updated: 2026-03-30 18:09

Title

Multi Emulator Super System 0.154-3.1 Buffer Overflow

Summary

Severity

8.6 (High)


                        
                          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

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulnCheck

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/39673	exploit
http://mamedev.org/	product
https://www.vulncheck.com/advisories/multi-emulat…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
mamedev	Mess Emulator	Affected: 0.154-3.1

Date Public

2016-04-07 00:00

Credits

Juan Sacco - http://www.exploitpack.com -

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2016-20039",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T18:08:57.867067Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2026-03-30T18:09:09.469Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
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        {
          "product": "Mess Emulator",
          "vendor": "mamedev",
          "versions": [
            {
              "status": "affected",
              "version": "0.154-3.1"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Juan Sacco - http://www.exploitpack.com -"
        }
      ],
      "datePublic": "2016-04-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
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      "problemTypes": [
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          "descriptions": [
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-39673",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/39673"
        },
        {
          "name": "Official Product Homepage",
          "tags": [
            "product"
          ],
          "url": "http://mamedev.org/"
        },
        {
          "name": "VulnCheck Advisory: Multi Emulator Super System 0.154-3.1 Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/multi-emulator-super-system-buffer-overflow"
        }
      ],
      "title": "Multi Emulator Super System 0.154-3.1 Buffer Overflow",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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    "datePublished": "2026-03-28T11:58:01.411Z",
    "dateReserved": "2026-03-28T11:32:06.624Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8VXC-WFFQ-WGMW

CVE-2016-20039 (GCVE-0-2016-20039)

Tags

Sightings

Nomenclature