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CVE-2022-30792

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

HIGH
7.5
CVSS Score
Published: July 11, 2022 at 10:40 AM UTC
Updated: June 17, 2026 at 04:44 AM UTC
27 products affected across 1 vendorControl for Linux SLControl for PFC100 SLControl for IOT2000 SL

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Severity
HIGH7.5
Exploit prediction
EPSS 0.9%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Control for BeagleBone· Codesys
95%
v < 4.5.0.0
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for emPC-A/iMX6· Codesys
95%
v < 4.5.0.0
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for IOT2000 SL· Codesys
95%
v < 4.6.0.0V3 ≤ v < V4.5.0.03
Affected range stops below 4.6.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for Linux SL· Codesys
95%
v < 4.5.0.0V3 ≤ v < V4.5.0.03
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for PFC100 SL· Codesys
95%
v < 4.5.0.0V3 ≤ v < V4.5.0.03
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for PFC200 SL· Codesys
95%
v < 4.5.0.0V3 ≤ v < V4.5.0.03
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for Plcnext· Codesys
95%
v < 4.6.0.0
Affected range stops below 4.6.0.0, so it looks safe — our inference, not a vendor statement
Control for Raspberry Pi SL· Codesys
95%
v < 4.5.0.0V3 ≤ v < V4.5.0.03
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.5.0.0, so it looks safe — our inference, not a vendor statement
Control for WAGO Touch Panels 600· Codesys
95%
v < 4.5.0.0
Affected range stops below 4.5.0.0, so it looks safe — our inference, not a vendor statement
Control RTE (SL)· Codesys
95%
v < 3.5.18.20V3 ≤ v < V3.5.18.203
Affected range stops below 3.5.18.20, so it looks safe — our inference, not a vendor statement
Affected range stops below V3.5.18.20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17128&token=bee4d8a57f19be289d623ec90135493b5f9179e3&download=

CVSS

7.5HIGHCERTVDE
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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