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CVE-2022-30791

CODESYS V3: CmpBlkDrvTcp allows unauthenticated attackers to block all its available TCP connections

Published: Jul 11, 2022Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.8%
Top 49.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400

Affected Products

CODESYS Control RTE (SL)CODESYSICS / OT / IoT
CODESYS Control RTE (for Beckhoff CX) SLCODESYSICS / OT / IoT
CODESYS Control Win (SL)CODESYSICS / OT / IoT
CODESYS GatewayCODESYSICS / OT / IoT
CODESYS Edge Gateway for WindowsCODESYSICS / OT / IoT
codesysoss-projectDEICS / OT / IoTaka codesys gmbh
and 35 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17128&token=bee4d8a57f19be289d623ec90135493b5f9179e3&download=
customers.codesys.com
https://festo.csaf-tp.certvde.com/.well-known/csaf/white/2026/fsa-202601.json
festo.csaf-tp.certvde.com
https://certvde.com/en/advisories/vendor/festo/
certvde.com
and 226 more references View all →

Timeline

Published
Jul 11, 2022
Last Updated
Nov 21, 2024

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