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Fencer Vulns
high 7.5

CVE-2023-1150 json

WAGO: Series 750-3x/-8x prone to MODBUS server DoS

published 2023-06-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23433

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.

Patch / fix

  • wago 750-363/040-000_firmware fw11
  • wago 750-362/040-000_firmware fw11
  • wago 750-362/000-001_firmware fw11
  • wago 750-891_firmware fw11
  • wago 750-365/040-010_firmware fw11
  • wago 750-364/040-010_firmware fw11
  • wago 750-362_firmware fw11
  • wago 750-363_firmware fw11
  • wago 750-823_firmware fw11
  • wago 750-832_firmware fw11
  • wago 750-832/000-002_firmware fw11
  • wago 750-862_firmware fw11
  • wago 750-890_firmware fw11
  • wago 750-890/025-000_firmware fw11
  • wago 750-890/025-001_firmware fw11
  • wago 750-890/025-002_firmware fw11
  • wago 750-890/040-000_firmware fw11
  • wago 750-893_firmware fw11

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • WAGO 750-332
  • WAGO 750-362/xxx-xxx
  • WAGO 750-363/xxx-xxx
  • WAGO 750-364/xxx-xxx
  • WAGO 750-365/xxx-xxx
  • WAGO 750-823
  • WAGO 750-832/xxx-xxx
  • WAGO 750-862
  • WAGO 750-890/xxx-xxx
  • WAGO 750-891
  • WAGO 750-893

Classification

Weakness
  • CWE-772 Missing Release of Resource after Effective Lifetime

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.