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Fencer Intel
high 7.5

CVE-2022-30792 json

CODESYS: CmpChannelServer, CmpChannelServerEmbedded allow unauthenticated attackers to block all their available communication channels

published 4y ago modified 4mo ago also EUVD-2022-52615

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

In CmpChannelServer of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new communication channel connections. Existing connections are not affected.

Patch / fix

  • CODESYS CODESYS Control RTE (SL) V3.5.18.20
  • CODESYS CODESYS Control RTE (for Beckhoff CX) SL V3.5.18.20
  • CODESYS CODESYS Control Win (SL) V3.5.18.20
  • CODESYS CODESYS Gateway V3.5.18.20
  • CODESYS CODESYS Edge Gateway for Windows V3.5.18.20
  • CODESYS CODESYS HMI (SL) V3.5.18.20
  • CODESYS CODESYS Development System V3 V3.5.18.10
  • CODESYS CODESYS Control Runtime System Toolkit V3.5.18.20
  • CODESYS CODESYS Embedded Target Visu Toolkit V3.5.18.20
  • CODESYS CODESYS Remote Target Visu Toolkit V3.5.18.20
  • CODESYS CODESYS Control for BeagleBone SL V4.5.0.0
  • CODESYS CODESYS Control for Beckhoff CX9020 SL V4.5.0.0
  • CODESYS CODESYS Control for emPC-A/iMX6 SL V4.5.0.0
  • CODESYS CODESYS Control for IOT2000 SL V4.5.0.0
  • CODESYS CODESYS Control for Linux SL V4.5.0.0
  • CODESYS CODESYS Control for PFC100 SL V4.5.0.0
  • CODESYS CODESYS Control for PFC200 SL V4.5.0.0
  • CODESYS CODESYS Control for PLCnext SL V4.5.0.0
  • CODESYS CODESYS Control for Raspberry Pi SL V4.5.0.0
  • CODESYS CODESYS Control for WAGO Touch Panels 600 SL V4.5.0.0
  • CODESYS CODESYS Edge Gateway for Linux V4.5.0.0

Is CVE-2022-30792 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-076-01 updated cvss 7.5

CODESYS in Festo Automation Suite

  • CODESYS Development System 3.0 Festo Automation Suite 2.8.0.137, Festo Automation Suite < 2.8.0.138 CODESYS Development System 3.5.16.10 Festo Automation Suite 2.8.0.137, Festo Automation Suite < 2.8.0.138
    affected: mitigation
  • Festo Automation Suite 2.8.0.138 CODESYS Development System 3.5.21.20
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

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
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • CODESYS CODESYS Control RTE (SL)
  • CODESYS CODESYS Control RTE (for Beckhoff CX) SL
  • CODESYS CODESYS Control Win (SL)
  • CODESYS CODESYS Gateway
  • CODESYS CODESYS Edge Gateway for Windows
  • CODESYS CODESYS HMI (SL)
  • CODESYS CODESYS Development System V3
  • CODESYS CODESYS Control Runtime System Toolkit
  • CODESYS CODESYS Embedded Target Visu Toolkit
  • CODESYS CODESYS Remote Target Visu Toolkit
  • CODESYS CODESYS Control for BeagleBone SL
  • CODESYS CODESYS Control for Beckhoff CX9020 SL
  • CODESYS CODESYS Control for emPC-A/iMX6 SL
  • CODESYS CODESYS Control for IOT2000 SL
  • CODESYS CODESYS Control for Linux SL
  • CODESYS CODESYS Control for PFC100 SL
  • CODESYS CODESYS Control for PFC200 SL
  • CODESYS CODESYS Control for PLCnext SL
  • CODESYS CODESYS Control for Raspberry Pi SL
  • CODESYS CODESYS Control for WAGO Touch Panels 600 SL
  • CODESYS CODESYS Edge Gateway for Linux

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel 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.