CVE-2018-7756

Status: ModifiedCritical (9.8)—Exploit

Severity9.8Critical · CVSS 3.0

Exploitation probability61 %higher than 99% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

RunExeFile.exe in the installer for DEWESoft X3 SP1 (64-bit) devices does not require authentication for sessions on TCP port 1999, which allows remote attackers to execute arbitrary code or access internal commands, as demonstrated by a RUN command that launches a .EXE file located at an arbitrary external URL, or a "SETFIREWALL Off" command.

CVSS

Base score: 9.8
Version: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 61 %
Percentile among all scored CVEs: 99
Score date: 10/28/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · DEWESoft X3 SP1 (x64) - Remote Command Execution (3/12/2018)

Affected technologies (1)

Dewesoft — Dewesoft

CWEs

CWE-94

References

Show 4 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2018-7756",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2018-03-15T01:29:03.573",
  "references": [
    {
      "url": "http://hyp3rlinx.altervista.org/advisories/DEWESOFT-X3-REMOTE-INTERNAL-COMMAND-ACCESS.txt",
      "tags": [
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    {
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      "tags": [
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    {
      "url": "http://hyp3rlinx.altervista.org/advisories/DEWESOFT-X3-REMOTE-INTERNAL-COMMAND-ACCESS.txt",
      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/44275/",
      "tags": [
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        "Third Party Advisory",
        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "RunExeFile.exe in the installer for DEWESoft X3 SP1 (64-bit) devices does not require authentication for sessions on TCP port 1999, which allows remote attackers to execute arbitrary code or access internal commands, as demonstrated by a RUN command that launches a .EXE file located at an arbitrary external URL, or a \"SETFIREWALL Off\" command."
    },
    {
      "lang": "es",
      "value": "RunExeFile.exe en el instalador de los dispositivos DEWESoft X3 SP1 (64-bit) no requiere autenticación para sesiones en el puerto TCP 1999. Esto permite que atacantes remotos ejecuten código arbitrario o accedan a comandos internos, tal y como demuestra un comando RUN que ejecuta un archivo .EXE ubicado en una URL externa arbitraria o un comando \"SETFIREWALL Off\"."
    }
  ],
  "lastModified": "2026-06-17T02:03:39.697",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dewesoft:dewesoft:x3:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1F8B305C-52A8-436C-8F75-F539B8DD9960"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "cve@mitre.org"
}