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Fencer Vulns
medium 6.5

CVE-2023-25620 json

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause denial of service of the controller w…

published 2023-04-19 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-29560

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause denial of service of the controller when a malicious project file is loaded onto the controller by an authenticated user.

Patch / fix

  • schneider-electric modicon_m580_firmware 4.10
  • schneider-electric modicon_m340_firmware 3.51

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Schneider Electric Modicon M340 CPU (part numbers BMXP34*)
  • Schneider Electric Modicon M580 CPU (part numbers BMEP* and BMEH*)
  • Schneider Electric Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S)
  • Schneider Electric Modicon Momentum Unity M1E Processor (171CBU*)
  • Schneider Electric Modicon MC80 (BMKC80)
  • Schneider Electric Legacy Modicon Quantum (140CPU65*)
  • Schneider Electric Legacy Modicon Premium CPUs (TSXP57*)

Classification

Weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions

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.