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Fencer Vulns
high 7.8

CVE-2023-5751 json

CODESYS: Development system prone to DoS through exposure of resource to wrong sphere

published 2024-06-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58037

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

A local attacker with low privileges can read and modify any users files and cause a DoS in the working directory of the affected products due to exposure of resource to wrong sphere.

Patch / fix

  • CODESYS CODESYS Control Win (SL) 3.5.20.10
  • CODESYS CODESYS Development System V3 3.5.20.10
  • CODESYS CODESYS Edge Gateway for Windows 3.5.20.10
  • CODESYS CODESYS Gateway for Windows 3.5.20.10
  • CODESYS CODESYS HMI (SL) 3.5.20.10
  • codesys control_win_sl 3.5.20.10
  • codesys development_system_v3 3.5.20.10
  • codesys edge_gateway 3.5.20.10
  • codesys gateway 3.5.20.10
  • codesys hmi_sl 3.5.20.10

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • CODESYS CODESYS Control Win (SL)
  • CODESYS CODESYS Development System V3
  • CODESYS CODESYS Edge Gateway for Windows
  • CODESYS CODESYS Gateway for Windows
  • CODESYS CODESYS HMI (SL)
  • codesys control_win_sl
  • codesys development_system_v3
  • codesys edge_gateway
  • codesys gateway
  • codesys hmi_sl

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere

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.