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Fencer Vulns
critical 9.8

CVE-2018-7756 in the critical feed json

RunExeFile.exe in the installer for DEWESoft X3 SP1 (64-bit) devices does not require authentication for sessions on TCP port 1999, which a…

published 2018-03-14 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19468

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
60.7%
EPSS 60.7% chance of exploitation in 30 days, percentile 99.1%
public exploits
1
Exploit-DB

Summary

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.

Timeline

  1. First public exploit (EDB-44275)
  2. Published

Exploit prediction

60.74% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-44275 DEWESoft X3 SP1 (x64) - Remote Command Execution remote, 2018-03-12
  • hyp3rlinx.altervista.org http://hyp3rlinx.altervista.org/advisories/DEWESOFT-X3-REMOTE-INTERNAL-COMMAND-ACCESS.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.